Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666358
R. Wang, Yaoming Sun, M. Kaynak, J. Borngräber, B. Goettel, S. Beer, C. Scheytt
Two half-wavelength 122 GHz patch antennas were designed and manufactured by using Benzocyclobutene (BCB) as a dielectric layer above the SiGe BiCMOS wafer. It enables the full integration of the millimeter-wave transceiver circuits and the antennas on a single chip to simplify the packaging procedure at millimeter-wave frequencies, thereby reducing the cost. The two patch antennas are fed by different feeding methods, i.e. microstrip transmission line direct feed and proximity-coupled feed. They exhibit similar performance and offer the flexibility of designing the interconnects (feed lines routing) between the circuits and the antennas within the very limited chip area. The measured gain is 3.4 dBi at 122.5 GHz (the center frequency of the ISM band of 122-123 GHz) for both designs with a simulated efficiency of about 50%.
{"title":"122 GHz patch antenna designs by using BCB above SiGe BiCMOS wafer process for system-on-chip applications","authors":"R. Wang, Yaoming Sun, M. Kaynak, J. Borngräber, B. Goettel, S. Beer, C. Scheytt","doi":"10.1109/PIMRC.2013.6666358","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666358","url":null,"abstract":"Two half-wavelength 122 GHz patch antennas were designed and manufactured by using Benzocyclobutene (BCB) as a dielectric layer above the SiGe BiCMOS wafer. It enables the full integration of the millimeter-wave transceiver circuits and the antennas on a single chip to simplify the packaging procedure at millimeter-wave frequencies, thereby reducing the cost. The two patch antennas are fed by different feeding methods, i.e. microstrip transmission line direct feed and proximity-coupled feed. They exhibit similar performance and offer the flexibility of designing the interconnects (feed lines routing) between the circuits and the antennas within the very limited chip area. The measured gain is 3.4 dBi at 122.5 GHz (the center frequency of the ISM band of 122-123 GHz) for both designs with a simulated efficiency of about 50%.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115629842","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}
Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666469
N. Rachkidy, A. Guitton, C. Buratti
Wireless sensor networks are often deployed for monitoring purposes: when nodes detect the occurrence of a significant event, they transmit an information to a control entity in a multi-hop fashion. When data rate increases, congestion becomes a fundamental issue, especially when an emergency situation generates alarm messages originating from a specific area of the network. Indeed, congestion increases delays and packet losses, and yields to an unfair use of the energy of nodes. In this paper, we propose to improve the ZigBee routing protocol, aiming at reducing traffic congestion. The proposed solution uses intermediate nodes, denoted as pivots, which are selected by the data sources in order to reduce congestion on paths. Simulation results highlight the significant improvement achieved in terms of packet losses and average delays, with respect to the ZigBee routing protocol, while the overhead generated in the network is maintained under control. A mathematical model to derive the average path length and the number of pivots is also provided.
{"title":"Improving the AODV-based ZigBee routing protocol through pivots","authors":"N. Rachkidy, A. Guitton, C. Buratti","doi":"10.1109/PIMRC.2013.6666469","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666469","url":null,"abstract":"Wireless sensor networks are often deployed for monitoring purposes: when nodes detect the occurrence of a significant event, they transmit an information to a control entity in a multi-hop fashion. When data rate increases, congestion becomes a fundamental issue, especially when an emergency situation generates alarm messages originating from a specific area of the network. Indeed, congestion increases delays and packet losses, and yields to an unfair use of the energy of nodes. In this paper, we propose to improve the ZigBee routing protocol, aiming at reducing traffic congestion. The proposed solution uses intermediate nodes, denoted as pivots, which are selected by the data sources in order to reduce congestion on paths. Simulation results highlight the significant improvement achieved in terms of packet losses and average delays, with respect to the ZigBee routing protocol, while the overhead generated in the network is maintained under control. A mathematical model to derive the average path length and the number of pivots is also provided.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124995804","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}
Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666376
Alaa Awad, Amr M. Mohamed, A. El-Sherif
Growing number of patients with chronic diseases requiring constant monitoring has created a major impetus to developing scalable Body Area Sensor Networks (BASNs) for remote health applications. In this paper, to anatomize, control, and optimize the behavior of the wireless EEG monitoring system under the energy constraint, we develop an Energy-Rate-Distortion (E-R-D) analysis framework. This framework extends the traditional distortion analysis by including the energy consumption dimension. Using the E-R-D model, an Energy-Delay-Distortion cross-layer design that aims at minimizing the total energy consumption subject to data delay deadline and distortion threshold constraints is proposed. The source encoding and data transmission are the two dominant power-consuming operations in wireless EEG monitoring system. Therefore, in the proposed cross-layer design, the optimal encoding and transmission energy are computed to minimize the energy consumption in a delay constrained wireless BASN. This cross-layer framework is proposed, across Application-MAC-Physical layers, under a constraint that all successfully received packets must have their delay smaller than their corresponding delay deadline and with maximum distortion less than the application distortion threshold. In addition to that, for efficient use of the bandwidth, a variable bandwidth allocation scheme that assigns the time-frequency slots to the sensor nodes is proposed, which results in significant energy savings over the conventional constant bandwidth allocation scheme, as shown in the simulation results.
越来越多的慢性病患者需要持续监测，这为开发用于远程健康应用的可扩展身体区域传感器网络(basn)创造了主要动力。为了剖析、控制和优化能量约束下无线脑电图监测系统的行为，我们开发了一个能量率失真(E-R-D)分析框架。该框架通过纳入能源消耗维度扩展了传统的扭曲分析。利用E-R-D模型，提出了一种能量-延迟-失真跨层设计，在数据延迟截止日期和失真阈值约束下，以最小化总能量消耗为目标。在无线脑电图监测系统中，源编码和数据传输是两个主要的功耗操作。因此，在提出的跨层设计中，计算了最优的编码和传输能量，以最小化延迟受限无线BASN的能量消耗。提出了跨应用- mac -物理层的跨层框架，在约束条件下，所有成功接收的数据包的延迟必须小于相应的延迟截止日期，最大失真小于应用失真阈值。此外，为了有效利用带宽，提出了一种可变带宽分配方案，将时频间隙分配给传感器节点，与传统的恒定带宽分配方案相比，该方案显著节省了能量，仿真结果表明。
{"title":"Energy efficient cross-layer design for wireless body area monitoring networks in healthcare applications","authors":"Alaa Awad, Amr M. Mohamed, A. El-Sherif","doi":"10.1109/PIMRC.2013.6666376","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666376","url":null,"abstract":"Growing number of patients with chronic diseases requiring constant monitoring has created a major impetus to developing scalable Body Area Sensor Networks (BASNs) for remote health applications. In this paper, to anatomize, control, and optimize the behavior of the wireless EEG monitoring system under the energy constraint, we develop an Energy-Rate-Distortion (E-R-D) analysis framework. This framework extends the traditional distortion analysis by including the energy consumption dimension. Using the E-R-D model, an Energy-Delay-Distortion cross-layer design that aims at minimizing the total energy consumption subject to data delay deadline and distortion threshold constraints is proposed. The source encoding and data transmission are the two dominant power-consuming operations in wireless EEG monitoring system. Therefore, in the proposed cross-layer design, the optimal encoding and transmission energy are computed to minimize the energy consumption in a delay constrained wireless BASN. This cross-layer framework is proposed, across Application-MAC-Physical layers, under a constraint that all successfully received packets must have their delay smaller than their corresponding delay deadline and with maximum distortion less than the application distortion threshold. In addition to that, for efficient use of the bandwidth, a variable bandwidth allocation scheme that assigns the time-frequency slots to the sensor nodes is proposed, which results in significant energy savings over the conventional constant bandwidth allocation scheme, as shown in the simulation results.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123911234","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}
Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666514
C. Campolo, A. Molinaro
Multiple channels have been allocated in the 5 GHz spectrum for vehicular communications in USA and in Europe. Due to the limited spectrum, simultaneous communications may occur over nearby channels and be affected by adjacent channel interference (ACI). To protect safety messages delivered on the control channel (CCH), the most likely approach is to prevent the use of adjacent channels with the consequence of spectrum resources wasting. In this paper we identify temporarily stopped vehicles (e.g., at the gas station for refuelling) as users that are potentially allowed to transmit on a channel that is adjacent to the CCH. A simulation study has been conducted to evaluate the viability of our proposal. Achieved results show that the two conflicting objectives of improving spectrum utilization and not penalizing safety messages can be successfully met, provided that the transmission power on the adjacent channel is adequately tuned and the stopped vehicle is at a sufficient distance from the vehicle that is using the CCH.
{"title":"Improving multi-channel operations in VANETs by leveraging stopped vehicles","authors":"C. Campolo, A. Molinaro","doi":"10.1109/PIMRC.2013.6666514","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666514","url":null,"abstract":"Multiple channels have been allocated in the 5 GHz spectrum for vehicular communications in USA and in Europe. Due to the limited spectrum, simultaneous communications may occur over nearby channels and be affected by adjacent channel interference (ACI). To protect safety messages delivered on the control channel (CCH), the most likely approach is to prevent the use of adjacent channels with the consequence of spectrum resources wasting. In this paper we identify temporarily stopped vehicles (e.g., at the gas station for refuelling) as users that are potentially allowed to transmit on a channel that is adjacent to the CCH. A simulation study has been conducted to evaluate the viability of our proposal. Achieved results show that the two conflicting objectives of improving spectrum utilization and not penalizing safety messages can be successfully met, provided that the transmission power on the adjacent channel is adequately tuned and the stopped vehicle is at a sufficient distance from the vehicle that is using the CCH.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121176016","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}
Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666577
Johannes Gonter, N. Goertz, M. Rupp, W. Gartner
This paper introduces a highly efficient waterfilling-based strategy for optimal use of the channel in vehicular or personal ad-hoc communications. The approach provides near optimum allocation of resources and enables small communications devices to establish connections when the energy efficiency is at its best. Instead of calculating the transmit power through conventional waterfilling, the proposed algorithm calculates the waterlevel, thus providing a decision threshold and a strategy for optimum use of the time-variant channel at the same time. The algorithm adapts to the changing average channel quality by applying an exponentially-weighted moving-average (EWMA) trigger to re-calculate the waterlevel. The new algorithm is compared to an efficient non-iterative algorithm that directly calculates the transmit powers in every time-slot. It is shown that the new strategy reduces computation time by approximately 90% compared to the classic approach without compromising performance measures such as transmitted information or energy. Practical implementation is briefly discussed to demonstrate suitability of the algorithm for integration into tomorrow's communication devices.
{"title":"EWMA-triggered waterfilling for reduced-complexity resource management in ad-hoc connections","authors":"Johannes Gonter, N. Goertz, M. Rupp, W. Gartner","doi":"10.1109/PIMRC.2013.6666577","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666577","url":null,"abstract":"This paper introduces a highly efficient waterfilling-based strategy for optimal use of the channel in vehicular or personal ad-hoc communications. The approach provides near optimum allocation of resources and enables small communications devices to establish connections when the energy efficiency is at its best. Instead of calculating the transmit power through conventional waterfilling, the proposed algorithm calculates the waterlevel, thus providing a decision threshold and a strategy for optimum use of the time-variant channel at the same time. The algorithm adapts to the changing average channel quality by applying an exponentially-weighted moving-average (EWMA) trigger to re-calculate the waterlevel. The new algorithm is compared to an efficient non-iterative algorithm that directly calculates the transmit powers in every time-slot. It is shown that the new strategy reduces computation time by approximately 90% compared to the classic approach without compromising performance measures such as transmitted information or energy. Practical implementation is briefly discussed to demonstrate suitability of the algorithm for integration into tomorrow's communication devices.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"2021 19","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114122320","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}
Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666481
Michael Lin, T. L. Porta
Enterprise femtocell deployments present numerous design challenges for network operators due to their high density, poor radio environments, and mixture of public and private users. Among these challenges, femtocell pilot management is particularly important due to its potential impact on both femtocell and macrocell users. Femtocell pilots determine femtocell coverage, but must be designed with consideration for macrocell transmissions and users. We introduce a utility-based femtocell pilot management algorithm that sets femtocell pilots by finding the Nash equilibrium of an N-player strategic game, using a utility function derived from the femtocell coverage radius. Using simulations, we find that the game-theoretic interference management algorithm reduces outage probabilities relative to a naive interference management scheme by up to 43% in the open access femtocell case, and 17% in the closed access femtocell case. Our conclusion is that game theory can be applied to the distributed problem of femtocell pilot estimation, with good results.
{"title":"Utility-based femtocell pilot management","authors":"Michael Lin, T. L. Porta","doi":"10.1109/PIMRC.2013.6666481","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666481","url":null,"abstract":"Enterprise femtocell deployments present numerous design challenges for network operators due to their high density, poor radio environments, and mixture of public and private users. Among these challenges, femtocell pilot management is particularly important due to its potential impact on both femtocell and macrocell users. Femtocell pilots determine femtocell coverage, but must be designed with consideration for macrocell transmissions and users. We introduce a utility-based femtocell pilot management algorithm that sets femtocell pilots by finding the Nash equilibrium of an N-player strategic game, using a utility function derived from the femtocell coverage radius. Using simulations, we find that the game-theoretic interference management algorithm reduces outage probabilities relative to a naive interference management scheme by up to 43% in the open access femtocell case, and 17% in the closed access femtocell case. Our conclusion is that game theory can be applied to the distributed problem of femtocell pilot estimation, with good results.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130293391","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}
Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666651
Mehmet Fatih Tüysüz, H. A. Mantar
Nowadays, IEEE 802.11 WLANs have been widely deployed in parallel with the growth of mobile devices. However, due to design choices and requirements, the communication range of the IEEE 802.11 standard is limited. Therefore, WLAN coverage over a large geographic area is provided using multiple access points (APs). Due to the mobility of mobile stations, a station might move and lose the signal of its associated AP. In that case, the station tries to maintain its wireless connectivity by associating with a new AP in a process known as handover. However, providing handover with guaranteed QoS is a challenging task for real-time applications, such as VoIP, video/audio streaming, and video conferencing. In this paper, we propose an efficient handover mechanism that can provide fast handover with guaranteed QoS for real-time applications in WLANs. With the help of the IEEE 802.21 information server (IS), a smart selective channel scanning method is deployed on mobile stations. Selective channel scanning enables stations to filter out the unavailable channels, and organize reliable group of channels to scan during the upcoming handover process. Simulation results show that the proposed scheme reduces the channel scanning delay in handover process, increases the overall throughput and provide QoS for real-time applications compared to the conventional handover scheme.
{"title":"Network-assisted QoS-based fast handover with smart scanning over IEEE 802.11 WLANs","authors":"Mehmet Fatih Tüysüz, H. A. Mantar","doi":"10.1109/PIMRC.2013.6666651","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666651","url":null,"abstract":"Nowadays, IEEE 802.11 WLANs have been widely deployed in parallel with the growth of mobile devices. However, due to design choices and requirements, the communication range of the IEEE 802.11 standard is limited. Therefore, WLAN coverage over a large geographic area is provided using multiple access points (APs). Due to the mobility of mobile stations, a station might move and lose the signal of its associated AP. In that case, the station tries to maintain its wireless connectivity by associating with a new AP in a process known as handover. However, providing handover with guaranteed QoS is a challenging task for real-time applications, such as VoIP, video/audio streaming, and video conferencing. In this paper, we propose an efficient handover mechanism that can provide fast handover with guaranteed QoS for real-time applications in WLANs. With the help of the IEEE 802.21 information server (IS), a smart selective channel scanning method is deployed on mobile stations. Selective channel scanning enables stations to filter out the unavailable channels, and organize reliable group of channels to scan during the upcoming handover process. Simulation results show that the proposed scheme reduces the channel scanning delay in handover process, increases the overall throughput and provide QoS for real-time applications compared to the conventional handover scheme.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131050757","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}
Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666660
Jong‐Hyouk Lee, Zhiwei Yan, J. Bonnin, X. Lagrange
The world is entering a post-PC era in which more real-time entertainment traffic is delivered to mobile devices than to PCs. The unprecedented expansion of mobile Internet traffic has resulted in the development of distributed mobility management (DMM) at the IETF. In this paper, we introduce a dynamic tunneling scheme for network-based DMM, in which mobility anchors are distributed at an access network level while tunnels for data packets are dynamically configured taking into account of both session and mobility status. We illustrate the proposed scheme's initial attachment and handover procedures step-by-step in an environment where network-based DMM is coexisted with Proxy Mobile IPv6. To justify the effectiveness of the proposed scheme, we develop an analytical cost model that is used to compare the performance of the proposed scheme with existing ones in terms of signaling and packet delivery costs. Our analysis shows that the proposed scheme optimizes packet delivery paths and thus provides a cost reduction during the packet delivery compared to the existing schemes. We also describe possible performance extensions to the proposed scheme.
{"title":"Dynamic tunneling for network-based distributed mobility management coexisting with PMIPv6","authors":"Jong‐Hyouk Lee, Zhiwei Yan, J. Bonnin, X. Lagrange","doi":"10.1109/PIMRC.2013.6666660","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666660","url":null,"abstract":"The world is entering a post-PC era in which more real-time entertainment traffic is delivered to mobile devices than to PCs. The unprecedented expansion of mobile Internet traffic has resulted in the development of distributed mobility management (DMM) at the IETF. In this paper, we introduce a dynamic tunneling scheme for network-based DMM, in which mobility anchors are distributed at an access network level while tunnels for data packets are dynamically configured taking into account of both session and mobility status. We illustrate the proposed scheme's initial attachment and handover procedures step-by-step in an environment where network-based DMM is coexisted with Proxy Mobile IPv6. To justify the effectiveness of the proposed scheme, we develop an analytical cost model that is used to compare the performance of the proposed scheme with existing ones in terms of signaling and packet delivery costs. Our analysis shows that the proposed scheme optimizes packet delivery paths and thus provides a cost reduction during the packet delivery compared to the existing schemes. We also describe possible performance extensions to the proposed scheme.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115619705","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}
Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666199
Lazar Berbakov, C. Antón-Haro, J. Matamoros
This paper considers a communication scenario where multiple energy harvesting sensors equipped with finite-capacity energy storage devices cooperate to transmit a previously shared common message to a distant base station. The goal is to identify the jointly optimal transmission (power allocation) policy which maximizes the total data throughput until a given deadline. To that aim, we propose a semi-analytical procedure on which basis the optimal policy for each sensor can be computed as a concatenation of a number of battery operated like transmission policies. The computational complexity of such semi-analytical methods turns out to be much lower than that of other numerical optimization tools (e.g., interior point algorithm). The performance is extensively assessed by means of computer simulations, with a specific emphasis on inter-senor distance, total amount of harvested energy and other system parameters. As a benchmark, we consider a strategy where the transmission policy is separately optimized for each sensor.
{"title":"Optimal transmission policy for collaborative beamforming with finite energy storage capacity","authors":"Lazar Berbakov, C. Antón-Haro, J. Matamoros","doi":"10.1109/PIMRC.2013.6666199","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666199","url":null,"abstract":"This paper considers a communication scenario where multiple energy harvesting sensors equipped with finite-capacity energy storage devices cooperate to transmit a previously shared common message to a distant base station. The goal is to identify the jointly optimal transmission (power allocation) policy which maximizes the total data throughput until a given deadline. To that aim, we propose a semi-analytical procedure on which basis the optimal policy for each sensor can be computed as a concatenation of a number of battery operated like transmission policies. The computational complexity of such semi-analytical methods turns out to be much lower than that of other numerical optimization tools (e.g., interior point algorithm). The performance is extensively assessed by means of computer simulations, with a specific emphasis on inter-senor distance, total amount of harvested energy and other system parameters. As a benchmark, we consider a strategy where the transmission policy is separately optimized for each sensor.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115711865","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}
Pub Date : 2013-12-11DOI: 10.1109/PIMRC.2013.6666504
Zhiwei Yan, Jong‐Hyouk Lee, Jianfeng Guan
In this paper, we introduce a deployment strategy to support large scale mobility management based on Proxy Mobile IPv6 (PMIPv6). As a centralized mobility management protocol, PMIPv6 employs a single-handed mobility anchor, Local Mobility Anchor (LMA), to maintain the mobility context and routing status of all registered mobile nodes in a localized domain. However, this single-handed mobility anchor will suffer with ever-increasing mobile Internet traffic. We propose a distributed local mobility anchor architecture with new prefix and address management schemes and then present a mobility management procedure with operational aspects. In the proposed architecture, the registration message is always routed to the closest LMA thanks to the anycast routing. The other LMAs create the direct host route to the serving Mobility Anchor Gateway (MAG) for the optimized packet transmission. We also analyze the proposed architecture's performance in terms of scalability, robustness, and efficiency. The results demonstrate that the state synchronization of the proposed architecture induces extra signaling cost during the handover, however, the optimized route established by it can save more cost when the PMIPv6 service is adopted in the large-scale environment.
{"title":"Distributed Local Mobility Anchor architecture for large scale mobility management","authors":"Zhiwei Yan, Jong‐Hyouk Lee, Jianfeng Guan","doi":"10.1109/PIMRC.2013.6666504","DOIUrl":"https://doi.org/10.1109/PIMRC.2013.6666504","url":null,"abstract":"In this paper, we introduce a deployment strategy to support large scale mobility management based on Proxy Mobile IPv6 (PMIPv6). As a centralized mobility management protocol, PMIPv6 employs a single-handed mobility anchor, Local Mobility Anchor (LMA), to maintain the mobility context and routing status of all registered mobile nodes in a localized domain. However, this single-handed mobility anchor will suffer with ever-increasing mobile Internet traffic. We propose a distributed local mobility anchor architecture with new prefix and address management schemes and then present a mobility management procedure with operational aspects. In the proposed architecture, the registration message is always routed to the closest LMA thanks to the anycast routing. The other LMAs create the direct host route to the serving Mobility Anchor Gateway (MAG) for the optimized packet transmission. We also analyze the proposed architecture's performance in terms of scalability, robustness, and efficiency. The results demonstrate that the state synchronization of the proposed architecture induces extra signaling cost during the handover, however, the optimized route established by it can save more cost when the PMIPv6 service is adopted in the large-scale environment.","PeriodicalId":210993,"journal":{"name":"2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114630633","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}
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