2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications最新文献_第3页

Interference performance of IEEE 802.15.6 Impulse-Radio Ultra-Wideband physical layer IEEE 802.15.6脉冲无线电超宽带物理层的干扰性能

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139895

I. Dotlic

引用次数: 14

Modified Partial Euclidean Distance for iterative tree-search MIMO detection 改进的部分欧氏距离迭代树搜索MIMO检测

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139801

T. Wiegand, N. Heidmann, S. Paul

引用次数: 1

Dynamic power allocation for multicast/broadcast services with cooperative distributed antenna systems 协同分布式天线系统下多播/广播业务的动态功率分配

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139892

P. Kuo, Pangan Ting

引用次数: 0

Adaptive geolocation based interference control for hierarchical cellular network with femtocells 基于自适应地理定位的飞蜂窝分层网络干扰控制

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139717

S. Sagari, G. Bhanage, D. Raychaudhuri

{"title":"Adaptive geolocation based interference control for hierarchical cellular network with femtocells","authors":"S. Sagari, G. Bhanage, D. Raychaudhuri","doi":"10.1109/PIMRC.2011.6139717","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139717","url":null,"abstract":"This paper presents an adaptive interference control method to mitigate undesirable interference from femtocells to macrocell users in hierarchical cellular networks. Such mechanisms usually require over-the-air signalling for estimation of interference resulting significant bandwidth overhead. The proposed ‘Adaptive Interference Scaling’ (AIS) method uses geolocation information for femtocell power control for interference avoidance. In this approach, each femtocell calculates interference contributed to nearby macrocell users and adjusts the power to meet specific target signal-to-interference-plus-noise (SINR) level. Results from simulations show that AIS is able to increase the number of macrocell users achieving target data rates by up to 158% relative to baseline without adaptive control, while resulting in only 12.2% femtocell users receiving rates below the target. AIS achieves improved performance by using location information to calculate and limit the interference power contributed by femtocells to macrocell users, while allowing the network operator to set any desired target rates.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117219013","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

Disjoint trajectory in wireless sensor networks with two mobile sinks 具有两个移动接收器的无线传感器网络中的不相交轨迹

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139949

Yukiya Kato, F. Ono

引用次数: 1

A cooperative transmission scheme for real-time data gathering in a Wireless Body Area Network 一种用于无线体域网络实时数据采集的协同传输方案

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139919

S. Hara, D. Anzai, K. Yanagihara, K. Takizawa, K. Hamaguchi

{"title":"A cooperative transmission scheme for real-time data gathering in a Wireless Body Area Network","authors":"S. Hara, D. Anzai, K. Yanagihara, K. Takizawa, K. Hamaguchi","doi":"10.1109/PIMRC.2011.6139919","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139919","url":null,"abstract":"Wireless Body Area Network (WBAN) has drawn considerable attention as a means to gather vital data from on-body sensors. In WBAN, however, a star network topology is mainly supported, connecting a central coordinator to vital sensor nodes put on different positions of a human body, so the links between the coordinator and the sensor nodes are often blocked by parts of the human body when the man takes different postures and motions. Therefore, to support real-time vital data gathering in WBANs, a scheme for mitigating such link blockings is essential. This paper proposes a cooperative scheme for ensuring reliable data transmission in a WBAN. For each sensor node on a human body, the proposed scheme autonomously assigns a sensor node as a cooperator out of other sensor nodes and the cooperator retransmits packets from the sensor node for a coordinator instead of the sensor node when the direct link between them is blocked. After presenting the cooperator selection algorithm, using the Received Signal Strength Indication (RSSI) data obtained from the experiment in an anechoic chamber, the paper evaluates the performance of the proposed scheme in terms of average and worst outage rates.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124949356","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: 21

Joint optimization of HD video coding rates and unicast flow control for IEEE 802.11ad relaying IEEE 802.11ad中继高清视频编码速率和单播流控制联合优化

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139669

Joongheon Kim, Yafei Tian, A. Molisch, S. Mangold

{"title":"Joint optimization of HD video coding rates and unicast flow control for IEEE 802.11ad relaying","authors":"Joongheon Kim, Yafei Tian, A. Molisch, S. Mangold","doi":"10.1109/PIMRC.2011.6139669","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139669","url":null,"abstract":"This paper proposes a joint optimization framework for minimizing high-definition (HD) video coding rates and selecting optimal relay nodes in 60 GHz millimeter-wave (mmWave) IEEE 802.11ad very high throughput (VHT) wireless systems. While IEEE 802.11ad VHT aims to support uncompressed HD video wireless transmission, its major limitation is the extremely high attenuation even in line-of-sight situations, which leads to a short admissible distance between transmitter and receivers and/or the necessity to compress video. To deal with this problem, the IEEE 802.11ad VHT draft standard defines efficient relaying protocols to extend the network coverage. When multiple source-destination pairs and multiple relays are present, a key question is which relay should help in the forwarding of which source flow. This selection should be done in such a way that the average video quality of the streams, which is related to the throughput in a nonlinear way, is maximized. We solve this problem by an integer programming framework that selects optimal relay nodes, their cooperation modes (i.e., amplify-and-forward, decode-and-forward, or non-cooperation), and the video coding (compression) rates which can maximize transmission quality.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125053824","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: 21

Multiband joint detection framework for complex Gaussian signals in cognitive radios 认知无线电中复杂高斯信号的多波段联合检测框架

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6140010

S. Z. Farooq, A. Ghafoor

引用次数: 3

A game theoretic approach for content distribution over wireless networks with mobile-to-mobile cooperation 移动对移动合作无线网络内容分发的博弈论方法

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139767

L. Al-Kanj, W. Saad, Z. Dawy

{"title":"A game theoretic approach for content distribution over wireless networks with mobile-to-mobile cooperation","authors":"L. Al-Kanj, W. Saad, Z. Dawy","doi":"10.1109/PIMRC.2011.6139767","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139767","url":null,"abstract":"With the emergence of green communication as a central design issue in wireless networks, the need for energy-efficient transmission protocols has significantly increased. In this paper, we study the problem of cooperative energy-efficient content distribution among a number of mobile terminals that are seeking to receive a content from a common wireless access point, e.g., a base station. We model the problem as a coalitional game among the mobile terminals and we propose a distributed algorithm for coalition formation. Using the proposed algorithm, the mobile terminals can cooperate and self-organize into independent coalitions for sharing content while minimizing the network's energy consumption. Within each coalition, a mobile, designated as coalition head, receives the content from the base station and shares it with its cooperating partners, either by unicasting or multicasting, using a short-range wireless technology. We analyze the resulting coalitional structures and study their properties. Simulation results show that the proposed algorithm presents a significant energy reduction in the network reaching up to 60% relative to the non-cooperative case and 37.5% relative to the case where all requesting mobiles form a grand coalition.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126655765","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: 29

Iterative channel estimation and data detection in fast fading channels 快速衰落信道中的迭代信道估计与数据检测

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139740

M. McGuire

{"title":"Iterative channel estimation and data detection in fast fading channels","authors":"M. McGuire","doi":"10.1109/PIMRC.2011.6139740","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139740","url":null,"abstract":"Iterative joint channel estimation and data detection/decoding has been shown to provide good performance in slow fading channels. In fast fading channels, the previously proposed techniques require a significant amount of the transmitted signal to be dedicated to non-data carrying pilot symbols reducing system efficiency. This paper proposes a channel estimation system using an extended Kalman filter to provide an initial estimate of the channel gains which is smoothed using a Discrete Prolate Spheroidal sequence basis expansion model technique. The smoothed channel gain estimates are then fed into a Kalman filter equalizer to provide an improved data signal estimate for calculation of the probabilistic information of the transmitted data for decoding purposes. This technique allows for BER performance within 1 dB of when ideal channel state information is available even when the Doppler frequency is as high as one percent of the data symbol rate. In addition, the proposed technique requires a smaller proportion of pilot symbols to data symbols for acceptable error performance compared to previously proposed methods.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122385520","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