首页 > 最新文献

2010 Wireless Telecommunications Symposium (WTS)最新文献

英文 中文
A time domain eigen value method for robust indoor localization 一种鲁棒室内定位的时域特征值方法
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479664
G. Godaliyadda, H. K. Garg
The hazardous nature of the indoor environment and the rapid growth of commercial indoor positioning systems have placed a significant emphasis on developing robust localization techniques. Our work focuses on developing super resolution techniques that can provide accurate time delay estimates under line-of-sight (LOS) conditions and generation of location information rich fingerprints that can be utilized for localization under non LOS conditions. First a detailed behavioral analysis of the subspace separation based super resolution algorithms is presented. Then we examine the newly introduced time domain eigen-value (TD-EV) method which effectively combines the time domain multiple signal classification (TD-MUSIC) and the frequency domain eigen-value (FD-EV) algorithms. This is done to secure the bandwidth versatility, superior path resolvability, and noise immunity of TD-MUSIC algorithm and FD-EV's ability to resurface underestimated local peaks submerged beneath the noise floor under constrained conditions. This makes TD-EV a prime candidate for accurate time delay estimation under severe multi-path and noise conditions prevalent in indoor environments. Additionally, these attributes provide a location information rich fingerprint from the resultant pseudo-spectrum output of our method for location based fingerprinting techniques.
室内环境的危险性质和商业室内定位系统的快速增长使得开发强大的定位技术成为一个重要的重点。我们的工作重点是开发超分辨率技术,在视距条件下提供准确的时间延迟估计,并生成位置信息丰富的指纹,可用于非视距条件下的定位。首先对基于子空间分离的超分辨算法进行了详细的行为分析。然后研究了时域特征值(TD-EV)方法,该方法有效地将时域多信号分类(TD-MUSIC)和频域特征值(FD-EV)算法相结合。这样做是为了确保TD-MUSIC算法的带宽通用性、优越的路径可分辨性和抗噪声性,以及FD-EV在受限条件下重新显示淹没在噪声底下的被低估的局部峰值的能力。这使得TD-EV成为在室内环境中普遍存在的严重多径和噪声条件下准确估计时延的主要候选者。此外,这些属性从基于位置的指纹识别技术的伪频谱输出中提供了一个位置信息丰富的指纹。
{"title":"A time domain eigen value method for robust indoor localization","authors":"G. Godaliyadda, H. K. Garg","doi":"10.1109/WTS.2010.5479664","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479664","url":null,"abstract":"The hazardous nature of the indoor environment and the rapid growth of commercial indoor positioning systems have placed a significant emphasis on developing robust localization techniques. Our work focuses on developing super resolution techniques that can provide accurate time delay estimates under line-of-sight (LOS) conditions and generation of location information rich fingerprints that can be utilized for localization under non LOS conditions. First a detailed behavioral analysis of the subspace separation based super resolution algorithms is presented. Then we examine the newly introduced time domain eigen-value (TD-EV) method which effectively combines the time domain multiple signal classification (TD-MUSIC) and the frequency domain eigen-value (FD-EV) algorithms. This is done to secure the bandwidth versatility, superior path resolvability, and noise immunity of TD-MUSIC algorithm and FD-EV's ability to resurface underestimated local peaks submerged beneath the noise floor under constrained conditions. This makes TD-EV a prime candidate for accurate time delay estimation under severe multi-path and noise conditions prevalent in indoor environments. Additionally, these attributes provide a location information rich fingerprint from the resultant pseudo-spectrum output of our method for location based fingerprinting techniques.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"46 Suppl 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115940802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effect of antennas correlation on the performance of MIMO systems in wireless sensor network 无线传感器网络中天线相关性对MIMO系统性能的影响
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479667
C. Singh, S. Mohan
Multiple-input multiple-output (MIMO) has been proved to be a path breaking technique for increasing capacity and reliability of a wireless communication system and has been adopted in most emerging wireless systems. To achieve the promised gain from MIMO, the antennas at transmitter or receiver are required to be separated by a minimum distance dependent on wavelength. Owing to the large physical size of traditional copper antennas, it is not possible to integrate them on tiny sensors with the required physical separation. The diversity technique if applied in wireless sensor network has potential to improve reliability as well as reduce power consumption. However, the traditional antennas are not suitable for placement on sensor nodes. This paper presents an analysis and performance results of MIMO with correlated antennas on sensor nodes of wireless sensor network.
多输入多输出(MIMO)已被证明是提高无线通信系统容量和可靠性的一种突破性技术,并已被大多数新兴的无线系统所采用。为了从MIMO中获得预期的增益,发射器或接收器的天线需要根据波长分开最小距离。由于传统铜天线的物理尺寸较大,不可能将它们集成到具有所需物理距离的微型传感器上。将分集技术应用于无线传感器网络,具有提高网络可靠性和降低网络功耗的潜力。然而,传统的天线不适合放置在传感器节点上。本文给出了无线传感器网络中具有相关天线的MIMO在传感器节点上的分析和性能结果。
{"title":"Effect of antennas correlation on the performance of MIMO systems in wireless sensor network","authors":"C. Singh, S. Mohan","doi":"10.1109/WTS.2010.5479667","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479667","url":null,"abstract":"Multiple-input multiple-output (MIMO) has been proved to be a path breaking technique for increasing capacity and reliability of a wireless communication system and has been adopted in most emerging wireless systems. To achieve the promised gain from MIMO, the antennas at transmitter or receiver are required to be separated by a minimum distance dependent on wavelength. Owing to the large physical size of traditional copper antennas, it is not possible to integrate them on tiny sensors with the required physical separation. The diversity technique if applied in wireless sensor network has potential to improve reliability as well as reduce power consumption. However, the traditional antennas are not suitable for placement on sensor nodes. This paper presents an analysis and performance results of MIMO with correlated antennas on sensor nodes of wireless sensor network.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129667283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
RFID usage issues in the supply chain 供应链中的RFID使用问题
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479669
B. Khoo
Soon RFID technology will be universal for tracking items, products, animals, shipments and even humans. The pervasiveness of RFID technology has given rise to a number of serious issues including security and privacy concerns. This paper will discuss current RFID usage issues and conduct a threat analysis of the RFID usage in the SCM processes then identify issues/risks and discuss how these issues can be resolved or risks can be mitigated.
很快,RFID技术将被广泛用于跟踪物品、产品、动物、货物甚至人类。RFID技术的普及已经引起了许多严重的问题,包括安全和隐私问题。本文将讨论当前的RFID使用问题,并对RFID在供应链管理过程中的使用进行威胁分析,然后确定问题/风险,并讨论如何解决这些问题或减轻风险。
{"title":"RFID usage issues in the supply chain","authors":"B. Khoo","doi":"10.1109/WTS.2010.5479669","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479669","url":null,"abstract":"Soon RFID technology will be universal for tracking items, products, animals, shipments and even humans. The pervasiveness of RFID technology has given rise to a number of serious issues including security and privacy concerns. This paper will discuss current RFID usage issues and conduct a threat analysis of the RFID usage in the SCM processes then identify issues/risks and discuss how these issues can be resolved or risks can be mitigated.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124300987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low-complexity channel estimation for superimposed pilots in distributed OFDMA systems 分布式OFDMA系统中叠加导频的低复杂度信道估计
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479650
Mikko Hiivala, I. Harjula, M. Lasanen
In multiple-input multiple-output (MIMO) systems, the requirement for orthogonal pilot sets grows linearly with the number of transmit antennas. The channel estimators based on multiplexed pilot subcarriers used in the current systems such as WiMAX and LTE consume bandwidth allocated for data transmission. An alternative approach based on superimposing the pilots onto the data subcarriers offers a good solution for channel estimation in systems where the maximum data rate can not be sacrificed for the cost of channel estimation accuracy. The concept of using superimposed pilots for channel estimation in a distributed multiple antenna transmission system is studied here with simple and low-complexity algorithms suitable for hardware implementation. The complexity and performance of the system are compared with a conventional multiplexed pilot system. The bit error rate (BER) simulation results demonstrate that superimposed pilots can be used to achieve tolerable performance in adaptive high-data rate systems with up to four transmitting antennas.
在多输入多输出(MIMO)系统中,对正交导频集的需求随着发射天线的数量呈线性增长。当前WiMAX和LTE等系统中使用的基于多路导频子载波的信道估计器消耗分配给数据传输的带宽。在信道估计精度不能以牺牲最大数据速率为代价的情况下,将导频叠加到数据子载波上的方法为信道估计提供了一个很好的解决方案。本文研究了在分布式多天线传输系统中使用叠加导频进行信道估计的概念,提出了适合硬件实现的简单、低复杂度算法。与传统的多路导频系统比较了系统的复杂性和性能。误码率(BER)仿真结果表明,在多达四个发射天线的自适应高数据速率系统中,叠加导频可以达到可容忍的性能。
{"title":"Low-complexity channel estimation for superimposed pilots in distributed OFDMA systems","authors":"Mikko Hiivala, I. Harjula, M. Lasanen","doi":"10.1109/WTS.2010.5479650","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479650","url":null,"abstract":"In multiple-input multiple-output (MIMO) systems, the requirement for orthogonal pilot sets grows linearly with the number of transmit antennas. The channel estimators based on multiplexed pilot subcarriers used in the current systems such as WiMAX and LTE consume bandwidth allocated for data transmission. An alternative approach based on superimposing the pilots onto the data subcarriers offers a good solution for channel estimation in systems where the maximum data rate can not be sacrificed for the cost of channel estimation accuracy. The concept of using superimposed pilots for channel estimation in a distributed multiple antenna transmission system is studied here with simple and low-complexity algorithms suitable for hardware implementation. The complexity and performance of the system are compared with a conventional multiplexed pilot system. The bit error rate (BER) simulation results demonstrate that superimposed pilots can be used to achieve tolerable performance in adaptive high-data rate systems with up to four transmitting antennas.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121551870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Operation of QDMA-based ad hoc networks 基于qdma的自组织网络的运行
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479655
Vijay P. Ramalingam, J. Daigle
The objective of this paper is to present a detailed description of the operation of an ad hoc network based on the Quadrature Division Multiple Access (QDMA) patent. The QDMA patent alludes to a communication paradigm for building code division multiple access (CDMA) based networks in the absence of base stations. The nodes in the QDMA network organize themselves as a hierarchical collection of squads, each having a node that manages the communication process among the squad members. To the best of our knowledge, there is no definitive explanation of any QDMA-based protocols in the literature. Herein, we describe, in detail, our understanding of the architecture of the QDMA-based network, as well as protocols for establishing and maintaining QDMA networks and for communicating among the mobile nodes. Our immediate objective is to present protocol definitions sufficient for doing meaningful performance analysis and for understanding the properties of QDMA-based ad hoc networks.
本文的目的是详细描述基于正交分多址(QDMA)专利的自组织网络的操作。QDMA专利涉及在没有基站的情况下用于构建基于码分多址(CDMA)的网络的通信范例。QDMA网络中的节点将自己组织为班的分层集合,每个班都有一个节点来管理班成员之间的通信过程。据我们所知,在文献中没有任何基于qdma的协议的明确解释。在此,我们详细描述了我们对基于QDMA的网络体系结构的理解,以及用于建立和维护QDMA网络和用于在移动节点之间通信的协议。我们的直接目标是提供足够的协议定义,以便进行有意义的性能分析和理解基于qdma的自组织网络的特性。
{"title":"Operation of QDMA-based ad hoc networks","authors":"Vijay P. Ramalingam, J. Daigle","doi":"10.1109/WTS.2010.5479655","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479655","url":null,"abstract":"The objective of this paper is to present a detailed description of the operation of an ad hoc network based on the Quadrature Division Multiple Access (QDMA) patent. The QDMA patent alludes to a communication paradigm for building code division multiple access (CDMA) based networks in the absence of base stations. The nodes in the QDMA network organize themselves as a hierarchical collection of squads, each having a node that manages the communication process among the squad members. To the best of our knowledge, there is no definitive explanation of any QDMA-based protocols in the literature. Herein, we describe, in detail, our understanding of the architecture of the QDMA-based network, as well as protocols for establishing and maintaining QDMA networks and for communicating among the mobile nodes. Our immediate objective is to present protocol definitions sufficient for doing meaningful performance analysis and for understanding the properties of QDMA-based ad hoc networks.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133929983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transparent session transfer in converged IP Messaging systems 融合IP消息传递系统中的透明会话传输
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479636
Y. Kwon, Jae-Deuk Jang, Hyunwoo Lee, Haewook Lee, Bummo Koo, Wuk Kim, Hyeonsang Eom
It has recently become possible to connect heterogeneous networks as the 4th generation networks have evolved. Services converged and unified with similar services in each network are more widely provided than ever. OMA (Open Mobile Alliance), an international standardization organization concerning mobile technologies, is now standardizing various functions regarding CPM (Converged IP Messaging) for the messaging service of the 4th generation networks. These functions include a method for dealing with various devices used by a single user. When communicating with a conversation partner, a user with multiple devices may transfer the communication session from one device to another. In this session transfer, the records of previous communication need to be maintained and transmitted in order to ensure the consistency of user experience. In this paper, we introduce two (source device and target device-initiated) methods for session transfer in CPM, that ensure the consistency of user experience; via the guaranteed delivery of session history stored before the transfer and the messages temporarily stored during the transfer, these methods permit transparent transfer causing minimal interruption in the conversation. With our prototype for session transfer in CPM, we demonstrate that the methods are effective in session transfer without loss of any data or unnecessary delay in conversation.
最近,随着第4代网络的发展,连接异构网络成为可能。每个网络中与类似业务融合和统一的业务比以往任何时候都更广泛地提供。移动通信技术的国际标准化组织OMA (Open Mobile Alliance,开放移动通信联盟)正在对第4代网络的通信服务CPM(融合IP通信)相关的各种功能进行标准化。这些功能包括用于处理单个用户使用的各种设备的方法。当与对话伙伴通信时,具有多个设备的用户可以将通信会话从一个设备转移到另一个设备。在此会话传输中,为了保证用户体验的一致性,需要对之前的通信记录进行维护和传输。本文介绍了CPM中两种会话传输方法(源设备发起和目标设备发起),保证了用户体验的一致性;通过保证传输前存储的会话历史和传输期间临时存储的消息的传递,这些方法允许透明传输,从而将会话中断降到最低。通过我们的CPM会话传输原型,我们证明了这些方法在会话传输中是有效的,不会丢失任何数据或不必要的会话延迟。
{"title":"Transparent session transfer in converged IP Messaging systems","authors":"Y. Kwon, Jae-Deuk Jang, Hyunwoo Lee, Haewook Lee, Bummo Koo, Wuk Kim, Hyeonsang Eom","doi":"10.1109/WTS.2010.5479636","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479636","url":null,"abstract":"It has recently become possible to connect heterogeneous networks as the 4th generation networks have evolved. Services converged and unified with similar services in each network are more widely provided than ever. OMA (Open Mobile Alliance), an international standardization organization concerning mobile technologies, is now standardizing various functions regarding CPM (Converged IP Messaging) for the messaging service of the 4th generation networks. These functions include a method for dealing with various devices used by a single user. When communicating with a conversation partner, a user with multiple devices may transfer the communication session from one device to another. In this session transfer, the records of previous communication need to be maintained and transmitted in order to ensure the consistency of user experience. In this paper, we introduce two (source device and target device-initiated) methods for session transfer in CPM, that ensure the consistency of user experience; via the guaranteed delivery of session history stored before the transfer and the messages temporarily stored during the transfer, these methods permit transparent transfer causing minimal interruption in the conversation. With our prototype for session transfer in CPM, we demonstrate that the methods are effective in session transfer without loss of any data or unnecessary delay in conversation.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126358120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wireless telecommunications in Latin America: A comparison of the market portfolios of America Movil and Telefonica 拉丁美洲的无线通讯:美洲移动和西班牙电信的市场组合比较
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479642
Steven R. Powell
With the growth of their Latin American mobile telecommunications markets slowing, regulatory pressures intensifying, and new entrants worsening an already unfavorable competitive environment, and in order to capitalize on the opportunity to increase revenues by providing new wireless data and video services to subscribers, Telefonica and America Movil management have begun to restructure their companies and re-think their internationalization strategies. This paper focuses on the two companies' Latin American market portfolios in 2008, comparing the portfolios with respect to the attractiveness of their markets and the companies' competitive positions in them, and how they changed from 2002 to 2008. The degrees of market attractiveness and competitive strength the portfolios possessed, as well as their variability across the markets in the portfolios, are considered. The portfolio analysis technique employed in the paper may have wider applicability for formulating corporate strategy.
随着拉丁美洲移动通信市场的增长放缓,监管压力加剧,新进入者恶化了本已不利的竞争环境,为了利用机会通过向用户提供新的无线数据和视频服务来增加收入,Telefonica和America Movil管理层已开始重组公司并重新考虑其国际化战略。本文主要研究两家公司在2008年的拉丁美洲市场投资组合,比较两家公司在市场吸引力和竞争地位方面的投资组合,以及2002年至2008年的变化情况。考虑了投资组合所拥有的市场吸引力和竞争实力的程度,以及它们在投资组合中跨市场的可变性。本文所采用的投资组合分析技术对于企业战略的制定具有更广泛的适用性。
{"title":"Wireless telecommunications in Latin America: A comparison of the market portfolios of America Movil and Telefonica","authors":"Steven R. Powell","doi":"10.1109/WTS.2010.5479642","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479642","url":null,"abstract":"With the growth of their Latin American mobile telecommunications markets slowing, regulatory pressures intensifying, and new entrants worsening an already unfavorable competitive environment, and in order to capitalize on the opportunity to increase revenues by providing new wireless data and video services to subscribers, Telefonica and America Movil management have begun to restructure their companies and re-think their internationalization strategies. This paper focuses on the two companies' Latin American market portfolios in 2008, comparing the portfolios with respect to the attractiveness of their markets and the companies' competitive positions in them, and how they changed from 2002 to 2008. The degrees of market attractiveness and competitive strength the portfolios possessed, as well as their variability across the markets in the portfolios, are considered. The portfolio analysis technique employed in the paper may have wider applicability for formulating corporate strategy.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"604 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131507500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Regularized channel inversion dirty-paper coding (RCI-DPC): Narrowing the power offset in MIMO X channels 正则化信道反转脏纸编码(RCI-DPC):缩小MIMO X信道的功率偏移
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479675
A. Anderson
The multiple-input multiple-output (MIMO) X channel consists of two transmitting nodes each sending independent data to two receiving nodes - all nodes equipped with multiple antennas. The MIMO X channel is a more general case of the well-studied broadcast (BC), multiple-access (MAC), and interference (IC) channels. A signaling technique called interference alignment (IA) has been shown to achieve certain multiplexing gains available to the X channel; however, interference alignment maintains a power offset from optimal cooperative signaling in the equivalent single-user channel. Cooperation or sharing of data between transmit and/or receive nodes provides significant increase in the achievable multiplexing and power offset gains. In this current work an adaptation of a common beamforming technique is used to decrease the power offset seen with interference alignment while maintaining the multiplexing gains of X channels guaranteed with interference alignment. Akin to zero-forcing dirty-paper coding (ZF-DPC) and interference alignment, the proposed technique uses regularized channel inversion with dirty-paper coding (RCI-DPC) to maximize the sum-rate of theMIMO X channel and hence attempts to minimize the associated power offset in the same channels.
多输入多输出(MIMO) X通道由两个发送节点组成,每个发送节点向两个接收节点发送独立的数据——所有节点都配备了多个天线。MIMO X信道是广播(BC)、多址(MAC)和干扰(IC)信道的一种更一般的情况。一种称为干扰对准(IA)的信号技术已被证明可以实现X信道的某些复用增益;然而,在等效的单用户信道中,干扰对准保持了最优合作信令的功率偏移。发送和/或接收节点之间的数据合作或共享提供了可实现的多路复用和功率偏移增益的显着增加。在当前的工作中,采用了一种通用波束形成技术来降低干扰对准时的功率偏移,同时保持干扰对准保证的X通道的复用增益。类似于零强制脏纸编码(ZF-DPC)和干扰对准,所提出的技术使用正则化信道反转与脏纸编码(RCI-DPC)来最大化theMIMO X信道的和速率,从而试图最小化相同信道中的相关功率偏移。
{"title":"Regularized channel inversion dirty-paper coding (RCI-DPC): Narrowing the power offset in MIMO X channels","authors":"A. Anderson","doi":"10.1109/WTS.2010.5479675","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479675","url":null,"abstract":"The multiple-input multiple-output (MIMO) X channel consists of two transmitting nodes each sending independent data to two receiving nodes - all nodes equipped with multiple antennas. The MIMO X channel is a more general case of the well-studied broadcast (BC), multiple-access (MAC), and interference (IC) channels. A signaling technique called interference alignment (IA) has been shown to achieve certain multiplexing gains available to the X channel; however, interference alignment maintains a power offset from optimal cooperative signaling in the equivalent single-user channel. Cooperation or sharing of data between transmit and/or receive nodes provides significant increase in the achievable multiplexing and power offset gains. In this current work an adaptation of a common beamforming technique is used to decrease the power offset seen with interference alignment while maintaining the multiplexing gains of X channels guaranteed with interference alignment. Akin to zero-forcing dirty-paper coding (ZF-DPC) and interference alignment, the proposed technique uses regularized channel inversion with dirty-paper coding (RCI-DPC) to maximize the sum-rate of theMIMO X channel and hence attempts to minimize the associated power offset in the same channels.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123276329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Minimum energy consumption design of A two-hop relay network for QoS guarantee 一种保证QoS的两跳中继网络的最小能耗设计
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479670
C. Lee, G. Hwang
In this paper we consider a two-hop relay network consisting of a source, a destination and multiple relay nodes. For a given quality of service (QoS) requirement such as transmission rate between the source and the destination, relay nodes have an adaptive power control scheme to meet the QoS requirement. The adaptive power control scheme is assumed to be based on the channel condition between relay nodes and the destination. It is then an interesting problem to design an optimal relay network that minimizes total average energy consumption. By considering the details on the operations of the relay selection protocol considered in this paper, we first develop a mathematical model for the relay network and analyze total average energy consumption. Based on our analytic results, we formulate an optimization problem with which we can design an optimal relay network that minimizes total average energy consumption. We provide some numerical examples to investigate the behavior of total average energy consumption of the relay network.
本文考虑一个由一个源、一个目的和多个中继节点组成的两跳中继网络。对于给定的服务质量(QoS)要求,例如源和目的之间的传输速率,中继节点具有自适应功率控制方案来满足QoS要求。假设自适应功率控制方案是基于中继节点和目的地之间的信道条件。因此,设计一个使总平均能耗最小的最优中继网络是一个有趣的问题。考虑到本文所考虑的中继选择协议的操作细节,我们首先建立了中继网络的数学模型,并分析了总平均能耗。基于我们的分析结果,我们提出了一个优化问题,我们可以设计一个最优的中继网络,使总平均能耗最小。通过数值算例研究了中继网络总平均能耗的变化规律。
{"title":"Minimum energy consumption design of A two-hop relay network for QoS guarantee","authors":"C. Lee, G. Hwang","doi":"10.1109/WTS.2010.5479670","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479670","url":null,"abstract":"In this paper we consider a two-hop relay network consisting of a source, a destination and multiple relay nodes. For a given quality of service (QoS) requirement such as transmission rate between the source and the destination, relay nodes have an adaptive power control scheme to meet the QoS requirement. The adaptive power control scheme is assumed to be based on the channel condition between relay nodes and the destination. It is then an interesting problem to design an optimal relay network that minimizes total average energy consumption. By considering the details on the operations of the relay selection protocol considered in this paper, we first develop a mathematical model for the relay network and analyze total average energy consumption. Based on our analytic results, we formulate an optimization problem with which we can design an optimal relay network that minimizes total average energy consumption. We provide some numerical examples to investigate the behavior of total average energy consumption of the relay network.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124909729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Dynamic channel allocation schemes for overlay cellular architectures 覆盖蜂窝结构的动态信道分配方案
Pub Date : 2010-04-21 DOI: 10.1109/WTS.2010.5479662
H. Aki, M. C. Ertürk, H. Arslan
Conventional cellular systems have not taken full advantage of frequency reuse and adaptive allocation due to the fixed cluster size and uniformed channel assignment procedure. In this paper, we propose two reuse portioning scheme for adaptive channel allocation namely maximal dynamic reuse partitioning (MDRP) and optimal dynamic reuse partitioning (ODRP). We propose that an overlaying cellular clustering scheme which uses adaptive cluster size would provide a better capacity by exploiting the high level of signal to interference ratio (SIR). The proposed methods are studied via simulations and the results show that the adaptive clustering with optimization provide a better capacity and grade of service (GoS) under some assumptions comparing to the conventional cellular architectures.
传统的蜂窝系统由于固定的簇大小和统一的信道分配程序,没有充分发挥频率复用和自适应分配的优势。本文提出了两种自适应信道分配复用方案,即最大动态复用分区(MDRP)和最优动态复用分区(ODRP)。我们提出了一种使用自适应簇大小的覆盖蜂窝聚类方案,通过利用高水平的信干扰比(SIR)来提供更好的容量。仿真结果表明,在一定的假设条件下,优化的自适应聚类比传统的蜂窝结构提供了更好的容量和服务等级(GoS)。
{"title":"Dynamic channel allocation schemes for overlay cellular architectures","authors":"H. Aki, M. C. Ertürk, H. Arslan","doi":"10.1109/WTS.2010.5479662","DOIUrl":"https://doi.org/10.1109/WTS.2010.5479662","url":null,"abstract":"Conventional cellular systems have not taken full advantage of frequency reuse and adaptive allocation due to the fixed cluster size and uniformed channel assignment procedure. In this paper, we propose two reuse portioning scheme for adaptive channel allocation namely maximal dynamic reuse partitioning (MDRP) and optimal dynamic reuse partitioning (ODRP). We propose that an overlaying cellular clustering scheme which uses adaptive cluster size would provide a better capacity by exploiting the high level of signal to interference ratio (SIR). The proposed methods are studied via simulations and the results show that the adaptive clustering with optimization provide a better capacity and grade of service (GoS) under some assumptions comparing to the conventional cellular architectures.","PeriodicalId":117027,"journal":{"name":"2010 Wireless Telecommunications Symposium (WTS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114555347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
期刊
2010 Wireless Telecommunications Symposium (WTS)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1