首页 > 最新文献

IET International Conference on Wireless Communications and Applications最新文献

英文 中文
An experimental study of supporting collaborative haptic interaction in distributed virtual environments over wireless networks 在无线网络上支持分布式虚拟环境中协同触觉交互的实验研究
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2089
K. Yap, Hasan A. A. Al-Rawi, Tsung-Han Lee
This paper presents an experimental investigation into a new peer-to-peer wireless network architecture for real time telehaptic operation in distributed virtual environments (DVEs). The new peer-to-peer architecture is able to support haptic interactions over different wireless network architecture. Experiments have been conducted to show the performance of different wireless architecture, i. e. wireless-B/G/N. Experiments have also been conducted to investigate the performance of this architecture. Findings of the study are presented in this paper and it shows the challenges in conducting haptic collaboration over wireless IP networks. This is especially true when the wireless hops increase. The wireless channel condition varies over time due to such factors as channel characteristics, the PHY scheme selected, time-varying interference, and channel width for the particular wireless architecture. (6 pages)
本文提出了一种新的点对点无线网络体系结构的实验研究,用于分布式虚拟环境(DVEs)中的实时遥触觉操作。新的点对点架构能够在不同的无线网络架构上支持触觉交互。通过实验验证了不同无线架构(即无线b /G/N)的性能。实验还对该体系结构的性能进行了研究。研究结果在本文中提出,它显示了在无线IP网络上进行触觉协作的挑战。当无线跳数增加时尤其如此。由于信道特性、所选择的PHY方案、时变干扰和特定无线架构的信道宽度等因素,无线信道条件随时间变化。(6页)
{"title":"An experimental study of supporting collaborative haptic interaction in distributed virtual environments over wireless networks","authors":"K. Yap, Hasan A. A. Al-Rawi, Tsung-Han Lee","doi":"10.1049/cp.2012.2089","DOIUrl":"https://doi.org/10.1049/cp.2012.2089","url":null,"abstract":"This paper presents an experimental investigation into a new peer-to-peer wireless network architecture for real time telehaptic operation in distributed virtual environments (DVEs). The new peer-to-peer architecture is able to support haptic interactions over different wireless network architecture. Experiments have been conducted to show the performance of different wireless architecture, i. e. wireless-B/G/N. Experiments have also been conducted to investigate the performance of this architecture. Findings of the study are presented in this paper and it shows the challenges in conducting haptic collaboration over wireless IP networks. This is especially true when the wireless hops increase. The wireless channel condition varies over time due to such factors as channel characteristics, the PHY scheme selected, time-varying interference, and channel width for the particular wireless architecture. (6 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121477883","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
Evaluating the energy-efficiency of transport layer protocols in a battery-powered wireless mesh networks 电池供电无线网状网络中传输层协议的能效评估
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2081
O. Oki, P. Mudali, M. Mutanga, M. Adigun
Wireless mesh networks have been shown to be an appropriate technology for rural areas. However, in most African countries, electricity is scarce in rural areas. A candidate solution to the power-constraint problem in these areas is the use of solar/battery-powered nodes. Different protocols at different layers have varying effects on the energy consumption of the nodes. However, it is not clear how these protocols affect the energy consumption of a battery-powered node in a testbed environment. This paper evaluates the influence of TCP and UDP on the lifetime of battery-powered nodes when subjected to different transmission power levels and payload sizes. An indoor testbed evaluation shows that UDP at maximum transmission power with minimum payload performs best with regards to the node lifetime, TCP at maximum payload with maximum transmission power performs best with regards to packet delivery ratio and throughput and TCP at maximum transmission power with minimum payload consumes the least transmission energy. (6 pages)
无线网状网络已被证明是一种适合农村地区的技术。然而,在大多数非洲国家,农村地区电力匮乏。在这些领域,功率限制问题的一个候选解决方案是使用太阳能/电池供电节点。不同层的不同协议对节点能耗的影响是不同的。然而,目前尚不清楚这些协议如何影响测试平台环境中电池供电节点的能耗。本文评估了TCP和UDP在不同传输功率和负载大小下对电池供电节点寿命的影响。室内试验台评估表明,UDP在最大传输功率和最小负载下在节点寿命方面表现最佳,TCP在最大传输功率和最大传输功率下在包投递率和吞吐量方面表现最佳,TCP在最大传输功率和最小负载下消耗的传输能量最少。(6页)
{"title":"Evaluating the energy-efficiency of transport layer protocols in a battery-powered wireless mesh networks","authors":"O. Oki, P. Mudali, M. Mutanga, M. Adigun","doi":"10.1049/cp.2012.2081","DOIUrl":"https://doi.org/10.1049/cp.2012.2081","url":null,"abstract":"Wireless mesh networks have been shown to be an appropriate technology for rural areas. However, in most African countries, electricity is scarce in rural areas. A candidate solution to the power-constraint problem in these areas is the use of solar/battery-powered nodes. Different protocols at different layers have varying effects on the energy consumption of the nodes. However, it is not clear how these protocols affect the energy consumption of a battery-powered node in a testbed environment. This paper evaluates the influence of TCP and UDP on the lifetime of battery-powered nodes when subjected to different transmission power levels and payload sizes. An indoor testbed evaluation shows that UDP at maximum transmission power with minimum payload performs best with regards to the node lifetime, TCP at maximum payload with maximum transmission power performs best with regards to packet delivery ratio and throughput and TCP at maximum transmission power with minimum payload consumes the least transmission energy. (6 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125285652","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: 3
Energy evaluation of data aggregation and authentication protocol (DAA) in wireless sensor networks 无线传感器网络中数据聚合与认证协议(DAA)的能量评估
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2092
S. Naeimi, Hamidreza Ghafghazi, Y. Zahedi, S. Ariffin, C. Chow
While security is an important feature in wireless sensor networks, but the energy constraints of sensor nodes should also be considered. In this work, the energy expenditure of such authentication protocol has been investigated respect to TelosB energy consumption behavior. Data Aggregation and Authentication protocol (DAA) integrates false data detection with data aggregation and confidentiality. DAA computes several Message Authentication Codes (MACs) and performs data aggregation along the path. Furthermore, integrity verification is carried out from source to destination. To evaluate precisely the energy efficiency of the scheme in the real world, a test bed implementation of DAA protocol is compared in terms of energy consumption with another authentication protocol. It is shown when the network is under attack and the amount of false data is high, DAA greatly outperforms traditional authentication techniques.
在无线传感器网络中,安全性是一个重要的特征,但同时也要考虑传感器节点的能量约束。在这项工作中,研究了这种认证协议在TelosB能耗行为方面的能量消耗。DAA (Data Aggregation and Authentication protocol)是将虚假数据检测与数据聚合、数据保密相结合的协议。DAA计算多个消息认证码(mac),并沿路径进行数据聚合。此外,从源到目的进行完整性验证。为了准确评估该方案在现实世界中的能源效率,将DAA协议的测试平台实现与另一种认证协议的能耗进行了比较。研究表明,在网络受到攻击、虚假数据量较大的情况下,DAA的性能大大优于传统的身份验证技术。
{"title":"Energy evaluation of data aggregation and authentication protocol (DAA) in wireless sensor networks","authors":"S. Naeimi, Hamidreza Ghafghazi, Y. Zahedi, S. Ariffin, C. Chow","doi":"10.1049/cp.2012.2092","DOIUrl":"https://doi.org/10.1049/cp.2012.2092","url":null,"abstract":"While security is an important feature in wireless sensor networks, but the energy constraints of sensor nodes should also be considered. In this work, the energy expenditure of such authentication protocol has been investigated respect to TelosB energy consumption behavior. Data Aggregation and Authentication protocol (DAA) integrates false data detection with data aggregation and confidentiality. DAA computes several Message Authentication Codes (MACs) and performs data aggregation along the path. Furthermore, integrity verification is carried out from source to destination. To evaluate precisely the energy efficiency of the scheme in the real world, a test bed implementation of DAA protocol is compared in terms of energy consumption with another authentication protocol. It is shown when the network is under attack and the amount of false data is high, DAA greatly outperforms traditional authentication techniques.","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131145653","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: 6
Location based recommender systems: Architecture, trends and research areas 基于位置的推荐系统:架构、趋势和研究领域
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2096
Sunita Tiwari, Saroj Kaushik, Shivendra Tiwari, Priti Jagwani
The growths of Internet, Global Positioning System (GPS) and wireless telecommunication technologies have opened new avenues in potential area of mobile computing called Location Based Services (LBS). Recommendation of personalized information / services in location based services has become an attractive trend for success of businesses. A Recommender System attempts to solve the problem of information overload and provides product and service recommendation based on user profile and preferences. The location of the user is an important information item that can be associated to the existing user profile in order to provide efficient recommendations. Also, easy availability of GPS enabled devices brings a large amount of GPS trajectories representing user's mobile logs. These GPS trajectories can be used to mine interesting patterns about users. We have studied the utility and application of information extracted from user's GPS trajectory data in recommender systems. We conceive that recommendation has an intrinsic social component and therefore this work takes a perspective towards the social aspect in location based recommender systems. In this paper, we are presenting the state-of-the-art research trends, challenges and applications in the area of Location-Based Recommender Systems (LBRS). (8 pages)
互联网、全球定位系统(GPS)和无线通信技术的发展为移动计算的潜在领域——基于位置的服务(LBS)——开辟了新的途径。在基于位置的服务中,个性化信息/服务的推荐已经成为企业成功的一个诱人趋势。推荐系统试图解决信息过载的问题,并根据用户的个人资料和偏好提供产品和服务推荐。用户的位置是一个重要的信息项,它可以与现有的用户配置文件相关联,以便提供有效的推荐。此外,GPS设备的易用性带来了大量代表用户移动日志的GPS轨迹。这些GPS轨迹可以用来挖掘关于用户的有趣模式。我们研究了从用户GPS轨迹数据中提取信息在推荐系统中的实用性和应用。我们认为推荐具有内在的社交成分,因此这项工作从社交方面研究了基于位置的推荐系统。在本文中,我们介绍了基于位置的推荐系统(LBRS)领域的最新研究趋势、挑战和应用。(8页)
{"title":"Location based recommender systems: Architecture, trends and research areas","authors":"Sunita Tiwari, Saroj Kaushik, Shivendra Tiwari, Priti Jagwani","doi":"10.1049/cp.2012.2096","DOIUrl":"https://doi.org/10.1049/cp.2012.2096","url":null,"abstract":"The growths of Internet, Global Positioning System (GPS) and wireless telecommunication technologies have opened new avenues in potential area of mobile computing called Location Based Services (LBS). Recommendation of personalized information / services in location based services has become an attractive trend for success of businesses. A Recommender System attempts to solve the problem of information overload and provides product and service recommendation based on user profile and preferences. The location of the user is an important information item that can be associated to the existing user profile in order to provide efficient recommendations. Also, easy availability of GPS enabled devices brings a large amount of GPS trajectories representing user's mobile logs. These GPS trajectories can be used to mine interesting patterns about users. We have studied the utility and application of information extracted from user's GPS trajectory data in recommender systems. We conceive that recommendation has an intrinsic social component and therefore this work takes a perspective towards the social aspect in location based recommender systems. In this paper, we are presenting the state-of-the-art research trends, challenges and applications in the area of Location-Based Recommender Systems (LBRS). (8 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115530282","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: 12
Throughput analysis of IEEE802.11n using OPNET 基于OPNET的IEEE802.11n吞吐量分析
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2068
A. M. Ghaleb, D. Chieng, A. Ting, K. Kwong, K. Lim, Heng-Siong Lim
The aim of this paper is to evaluate the throughput performance of IEEE802.11n WLANs using a well-known commercial simulator called OPNET Modeler. We study the effects of IP packet size, Modulation and Coding Scheme (MCS), Channel Bonding, number of MIMO spatial streams, Block Acknowledgement (BA) and Type of Service (ToS)/Access Category (AC) on maximum throughput and Throughput Efficiency (TE). The impact of multiple users' access on TE is also analyzed. From these studies we offer fresh insights on underlying configurations and operating conditions which affect the peak throughput performance and efficiency of IEEE802.11n system. (7 pages)
本文的目的是使用一个著名的商业模拟器OPNET Modeler来评估IEEE802.11n wlan的吞吐量性能。我们研究了IP分组大小、调制和编码方案(MCS)、信道绑定、MIMO空间流数量、块确认(BA)和服务类型(ToS)/访问类别(AC)对最大吞吐量和吞吐量效率(TE)的影响。分析了多用户接入对TE的影响。从这些研究中,我们对影响IEEE802.11n系统峰值吞吐量性能和效率的底层配置和操作条件提供了新的见解。(7页)
{"title":"Throughput analysis of IEEE802.11n using OPNET","authors":"A. M. Ghaleb, D. Chieng, A. Ting, K. Kwong, K. Lim, Heng-Siong Lim","doi":"10.1049/cp.2012.2068","DOIUrl":"https://doi.org/10.1049/cp.2012.2068","url":null,"abstract":"The aim of this paper is to evaluate the throughput performance of IEEE802.11n WLANs using a well-known commercial simulator called OPNET Modeler. We study the effects of IP packet size, Modulation and Coding Scheme (MCS), Channel Bonding, number of MIMO spatial streams, Block Acknowledgement (BA) and Type of Service (ToS)/Access Category (AC) on maximum throughput and Throughput Efficiency (TE). The impact of multiple users' access on TE is also analyzed. From these studies we offer fresh insights on underlying configurations and operating conditions which affect the peak throughput performance and efficiency of IEEE802.11n system. (7 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122045250","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: 10
Experimental characterization of NLOS broadband millimeter wave links NLOS宽带毫米波链路的实验表征
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2073
L. Talbi, M. Ghaddar
This study investigates the potential use of microwave scatterers (MS) for data transmission relay in order to extend the signal coverage over shadowed remote places where lineof-sight (LOS) transmission is not present. Series of indoor NLOS-CW (non-LOS continuous wave) measurements over the 29-30 GHz band were conducted at the intersection of two hallways in presence of two metallic cylinders of different diameters, a right angle standing metallic corner, and a flat surface metallic reflector. Results indicate that for systems operating at a short range of tens of meters, MS provides an alternative to LOS systems, cables or the use of repeaters. It was also found that some types of MS yield better signal coverage while others deflect the signal destructively. Hence, the received signal strength depends strongly on the MS's shape, size and surface roughness. (5 pages)
本研究探讨了微波散射体(MS)用于数据传输中继的潜在用途,以扩大在视线(LOS)传输不存在的阴影偏远地区的信号覆盖范围。在两个走廊的交汇处,在两个不同直径的金属圆柱体、一个直角站立的金属角和一个平面金属反射器的存在下,进行了29-30 GHz波段的室内NLOS-CW(非los连续波)测量。结果表明,对于在几十米短距离内运行的系统,MS提供了LOS系统、电缆或使用中继器的替代方案。还发现一些类型的质谱产生更好的信号覆盖,而另一些则破坏性地偏转信号。因此,接收到的信号强度很大程度上取决于MS的形状、大小和表面粗糙度。(5页)
{"title":"Experimental characterization of NLOS broadband millimeter wave links","authors":"L. Talbi, M. Ghaddar","doi":"10.1049/cp.2012.2073","DOIUrl":"https://doi.org/10.1049/cp.2012.2073","url":null,"abstract":"This study investigates the potential use of microwave scatterers (MS) for data transmission relay in order to extend the signal coverage over shadowed remote places where lineof-sight (LOS) transmission is not present. Series of indoor NLOS-CW (non-LOS continuous wave) measurements over the 29-30 GHz band were conducted at the intersection of two hallways in presence of two metallic cylinders of different diameters, a right angle standing metallic corner, and a flat surface metallic reflector. Results indicate that for systems operating at a short range of tens of meters, MS provides an alternative to LOS systems, cables or the use of repeaters. It was also found that some types of MS yield better signal coverage while others deflect the signal destructively. Hence, the received signal strength depends strongly on the MS's shape, size and surface roughness. (5 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122618711","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
Statistical routing protocol for handover management in Wireless Sensor Networks 用于无线传感器网络切换管理的统计路由协议
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2108
Siyang Shan, Chong Shen, Yong Bai
With the rapid development of wireless sensor techniques and wireless communication techniques in recent years, Wireless Sensor Networks (WSN) has achieved significant improvements. Sensor nodes deployment can be static or dynamic. The support of the mobility becomes one of the important issues in WSN. The problem caused by frequent topology changes is to find a tradeoff between reliability and energy efficiency. Inspired by wireless networks Radio Resource Management (RRM), we introduce handover management strategies to solve the problem. In this research, we therefore deliver some novel WSN based handover techniques under various conditions. (5 pages)
近年来,随着无线传感器技术和无线通信技术的快速发展,无线传感器网络(WSN)取得了显著的进步。传感器节点的部署可以是静态的也可以是动态的。移动性的支持成为无线传感器网络的重要问题之一。频繁的拓扑变化带来的问题是如何在可靠性和能源效率之间找到一个平衡点。受无线网络无线电资源管理(RRM)的启发,我们引入了切换管理策略来解决这个问题。因此,在本研究中,我们提出了一些新的基于无线传感器网络的切换技术。(5页)
{"title":"Statistical routing protocol for handover management in Wireless Sensor Networks","authors":"Siyang Shan, Chong Shen, Yong Bai","doi":"10.1049/cp.2012.2108","DOIUrl":"https://doi.org/10.1049/cp.2012.2108","url":null,"abstract":"With the rapid development of wireless sensor techniques and wireless communication techniques in recent years, Wireless Sensor Networks (WSN) has achieved significant improvements. Sensor nodes deployment can be static or dynamic. The support of the mobility becomes one of the important issues in WSN. The problem caused by frequent topology changes is to find a tradeoff between reliability and energy efficiency. Inspired by wireless networks Radio Resource Management (RRM), we introduce handover management strategies to solve the problem. In this research, we therefore deliver some novel WSN based handover techniques under various conditions. (5 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133772372","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
Compatibility between the IMT-A service with digital broadcasting in the digital dividend band IMT-A业务与数字红利频段数字广播的兼容性
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2072
W. A. Hassan, T. A. Rahman
One of the outcomes in the last world radio communication conference 2007 (WRC-07) is assigning the 790-862 MHz band to the digital broadcasting (DB), and the new mobile system called International Mobile Telecommunication - Advanced (IMT-A) in co-primary basis in 2015. Until that year, the primary service (i.e., DB) should be protected from the new system (i.e., IMT-A). This paper investigates the spectrum sharing requirements such as separation distance and the frequency separation between DB and IMT-A in the 790-862 MHz band. Our study utilizes the Interfere Spectrum Emission Mask (ISEM) and the victim receiver blocking (VRB) as spectrum sharing models based on the Interference-to-Noise ratio (INR) if -6dB as a spectrum sharing criterion. The results show that high interference impact occurs in rural area deployments, whereas, the coexistence could be achieved in urban areas, requiring less separation distance. (4 pages)
上届2007年世界无线电通信大会(WRC-07)的成果之一是在2015年将790-862 MHz频段分配给数字广播(DB)和称为国际高级移动通信(IMT-A)的新移动系统。在那一年之前,主要服务(即DB)应该不受新系统(即IMT-A)的影响。本文研究了790-862 MHz频段内DB与IMT-A之间的分离距离、频率分离等频谱共享要求。本研究采用干扰频谱发射掩模(ISEM)和受害接收机阻塞(VRB)作为频谱共享模型,以干扰噪声比(INR)为频谱共享准则(-6dB)。结果表明,在农村地区部署时存在较大的干扰影响,而在城市地区部署时,需要较少的分离距离即可实现共存。(4页)
{"title":"Compatibility between the IMT-A service with digital broadcasting in the digital dividend band","authors":"W. A. Hassan, T. A. Rahman","doi":"10.1049/cp.2012.2072","DOIUrl":"https://doi.org/10.1049/cp.2012.2072","url":null,"abstract":"One of the outcomes in the last world radio communication conference 2007 (WRC-07) is assigning the 790-862 MHz band to the digital broadcasting (DB), and the new mobile system called International Mobile Telecommunication - Advanced (IMT-A) in co-primary basis in 2015. Until that year, the primary service (i.e., DB) should be protected from the new system (i.e., IMT-A). This paper investigates the spectrum sharing requirements such as separation distance and the frequency separation between DB and IMT-A in the 790-862 MHz band. Our study utilizes the Interfere Spectrum Emission Mask (ISEM) and the victim receiver blocking (VRB) as spectrum sharing models based on the Interference-to-Noise ratio (INR) if -6dB as a spectrum sharing criterion. The results show that high interference impact occurs in rural area deployments, whereas, the coexistence could be achieved in urban areas, requiring less separation distance. (4 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117338363","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
Theoretical estimators and lower-bounds for receiver-to-receiver time synchronization in multi-hop wireless networks 多跳无线网络中接收端到接收端时间同步的理论估计和下限
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2084
D. Djenouri
Maximum likelihood estimators (MLE) for time synchronization parameters of receiver-to-receiver protocols are derived. The MLE are first provided for a single-hop model, then generalized to a multi-hop model. The appropriate Cramer-Rao lower bounds (CRLB) for the estimators are then derived, which serves as a theoretical lower bound to any unbiased estimator. The proposed estimators are compared with their respective CRLB through simulation in multi-hop scenarios of up-to eight hops. The results show fast convergence of the estimation precision to the CRLB and demonstrate a high precision, where the mean square error (MSE) does not exceed 10-6 for the skew, and 10-5 for the offset. (6 pages)
推导了接收端到接收端协议时间同步参数的最大似然估计。首先给出了单跳模型的MLE,然后将其推广到多跳模型。然后导出了适当的估计量的Cramer-Rao下界(CRLB),作为任何无偏估计量的理论下界。在最多8跳的多跳场景下,将所提出的估计器与各自的CRLB进行了仿真比较。结果表明,估计精度快速收敛到CRLB,且具有较高的精度,其中偏态的均方误差(MSE)不超过10-6,偏移量的均方误差不超过10-5。(6页)
{"title":"Theoretical estimators and lower-bounds for receiver-to-receiver time synchronization in multi-hop wireless networks","authors":"D. Djenouri","doi":"10.1049/cp.2012.2084","DOIUrl":"https://doi.org/10.1049/cp.2012.2084","url":null,"abstract":"Maximum likelihood estimators (MLE) for time synchronization parameters of receiver-to-receiver protocols are derived. The MLE are first provided for a single-hop model, then generalized to a multi-hop model. The appropriate Cramer-Rao lower bounds (CRLB) for the estimators are then derived, which serves as a theoretical lower bound to any unbiased estimator. The proposed estimators are compared with their respective CRLB through simulation in multi-hop scenarios of up-to eight hops. The results show fast convergence of the estimation precision to the CRLB and demonstrate a high precision, where the mean square error (MSE) does not exceed 10-6 for the skew, and 10-5 for the offset. (6 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130419611","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
DEST: Distributed endurant spanning tree for data aggregation on wireless sensor networks 用于无线传感器网络数据聚合的分布式持久生成树
Pub Date : 1900-01-01 DOI: 10.1049/cp.2012.2093
Jen-Yeu Chen, Da-Wei Juan, Cheng-Sen Huang
In this paper, an energy-aware distributed algorithm is proposed to construct an endurant spanning tree for data aggregation on wireless sensor networks. On the constructed aggregation tree, nodes with higher residual energy are arranged close to the trunk to maximize the lifetime of the tree, and maintain the integrity of aggregated data. Data aggregation, in which a node processes the data collected from all its children nodes and then transmits the processed result to its parent node by a single message, is an energy efficient way to collect data from sensor nodes. However, in the tree hierarchy for data aggregation, a node failure close to the root of the tree (the sink node of a sensor network) will cause severe data loss (all data from the downstream of this failure node will be lost.). This motivates our algorithm to arrange those nodes with higher residual energy close to the root of aggregation tree and relieve the responsibility of nodes with less residual energy. Our algorithm for tree construction is distributed; each node makes its own decision by exchanging information with its neighbouring nodes. The experiment results show that the constructed aggregation tree by our algorithm, named Distributed Endurant Spanning Tree (DEST) is the most endurant, i.e., of the longest time to reach a certain level of data loss due to node failures from running out of energy, compared to other representative energy-aware aggregation trees in the literature. This also indicates a less frequent re-construction of data aggregation tree, which further reduces the energy consumption on sensor networks. (6 pages)
本文提出了一种能量感知的分布式算法,用于构建无线传感器网络数据聚合的持久生成树。在构建的聚合树上,将剩余能量较高的节点布置在靠近主干的位置,使树的生命周期最大化,并保持聚合数据的完整性。数据聚合是一种从传感器节点收集数据的节能方式,其中一个节点处理从其所有子节点收集的数据,然后通过一条消息将处理结果传输给父节点。然而,在数据聚合的树状结构中,靠近树的根节点(传感器网络的汇聚节点)的节点故障将导致严重的数据丢失(该故障节点的下游所有数据将丢失)。这促使我们的算法将剩余能量较高的节点安排在靠近聚合树根的位置,并减轻剩余能量较小的节点的责任。我们的树形构造算法是分布式的;每个节点通过与相邻节点交换信息来做出自己的决定。实验结果表明,与文献中具有代表性的能量感知聚合树相比,本文算法构建的分布式持久生成树(Distributed endurance Spanning tree, DEST)是最持久的,即在最长的时间内由于节点耗尽能量而导致一定程度的数据丢失。这也表明数据聚合树的重构频率较低,进一步降低了传感器网络的能耗。(6页)
{"title":"DEST: Distributed endurant spanning tree for data aggregation on wireless sensor networks","authors":"Jen-Yeu Chen, Da-Wei Juan, Cheng-Sen Huang","doi":"10.1049/cp.2012.2093","DOIUrl":"https://doi.org/10.1049/cp.2012.2093","url":null,"abstract":"In this paper, an energy-aware distributed algorithm is proposed to construct an endurant spanning tree for data aggregation on wireless sensor networks. On the constructed aggregation tree, nodes with higher residual energy are arranged close to the trunk to maximize the lifetime of the tree, and maintain the integrity of aggregated data. Data aggregation, in which a node processes the data collected from all its children nodes and then transmits the processed result to its parent node by a single message, is an energy efficient way to collect data from sensor nodes. However, in the tree hierarchy for data aggregation, a node failure close to the root of the tree (the sink node of a sensor network) will cause severe data loss (all data from the downstream of this failure node will be lost.). This motivates our algorithm to arrange those nodes with higher residual energy close to the root of aggregation tree and relieve the responsibility of nodes with less residual energy. Our algorithm for tree construction is distributed; each node makes its own decision by exchanging information with its neighbouring nodes. The experiment results show that the constructed aggregation tree by our algorithm, named Distributed Endurant Spanning Tree (DEST) is the most endurant, i.e., of the longest time to reach a certain level of data loss due to node failures from running out of energy, compared to other representative energy-aware aggregation trees in the literature. This also indicates a less frequent re-construction of data aggregation tree, which further reduces the energy consumption on sensor networks. (6 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122253118","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: 3
期刊
IET International Conference on Wireless Communications and Applications
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