Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005.最新文献_第3页

Source and Channel Coding for Quasi-Static Fading Channels 准静态衰落信道的信源信道编码

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599692

Deniz Gunduz, E. Erkip

引用次数: 58

Channel Modeling and Performance Analysis in Watermarking 水印中的信道建模与性能分析

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599810

H. Shah, Aria Nosratinia

引用次数: 0

Multi-Source Cooperative Networks with Distributed Convolutional Coding 基于分布式卷积编码的多源协作网络

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599920

Renqiu Wang, Wanlun Zhao, G. Giannakis

{"title":"Multi-Source Cooperative Networks with Distributed Convolutional Coding","authors":"Renqiu Wang, Wanlun Zhao, G. Giannakis","doi":"10.1109/ACSSC.2005.1599920","DOIUrl":"https://doi.org/10.1109/ACSSC.2005.1599920","url":null,"abstract":"Cooperative diversity, enabled by communicators willing to collaborate, offers an effective way of mitigating slow fading propagation effects. Recently, multi-source cooperation (MSC) has been introduced to provide higher diversity and code rates relative to cooperative schemes that rely on either amplify-and-forward or regeneration of information at relay nodes. In this paper, we develop a distributed convolutionally coded (DCC) MSC system. We show that in a cooperative network with binary transmission among K active users and M idle users, the maximum diversity order is min(dmin ,α ) for any MSC scheme with code rateR and minimum (free) Hamming distance dmin ,w hereα =1 +� L(1 − R)� is the maximum possible diversity order provided by L independent Rayleigh channel gains. Notice that L = K, if cooperation takes place only between active users; and L = K + M ,i fM idle users also serve as relays. Compared to MSC with block coding, our DCC-MSC scheme is more effective with long codewords, when maximum likelihood decoding can be implemented using Viterbi's algorithm. We also design interleavers to maximize the diversity of the error event with minimum distance. Simu- lations verify that DCC-MSC can improve system performance markedly.","PeriodicalId":326489,"journal":{"name":"Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2005-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114289462","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

Codebook Adaptation for Quantized MIMO Beamforming Systems 量化MIMO波束形成系统的码本自适应

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599772

R. Samanta, R. Heath

引用次数: 48

Performance Bounds in OFDM Channel Prediction OFDM信道预测中的性能界限

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1600008

I. Wong, B. Evans

引用次数: 3

Algorithms for Quantized Precoded MIMO-OFDM Systems 量化预编码MIMO-OFDM系统的算法

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599773

B. Mondal, R. Heath

{"title":"Algorithms for Quantized Precoded MIMO-OFDM Systems","authors":"B. Mondal, R. Heath","doi":"10.1109/ACSSC.2005.1599773","DOIUrl":"https://doi.org/10.1109/ACSSC.2005.1599773","url":null,"abstract":"The knowledge of the wireless channel is crucial for realizing the capacity and diversity gains of a MIMO system. In the absence of perfect channel knowledge at the transmitter, channel information can be quantized at the receiver and sent back using a low-rate feedback link. In the case of flat-fading channels, considerable work has been done in reducing the feedback information. This work, however, does not naturally extend to the case of frequency selective channels and leads to an explosion in the feedback overhead. In this paper, OFDM is considered as an implementation of linearly precoded MIMO spatial multiplexing systems over frequency selective channels. Two classes of algorithms are discussed for quantizing channel information-clustering and transform. The clustering group the subcarriers and choose a common frequency-domain representation of the channel information for each group. Thus the feedback rate depends on the number of groups and not on the number of subcarriers. The transform algorithms quantize the channel information in time-domain where the transform essentially decorrelates the channel information. Both the algorithms provide significant compression of channel information maintaining bit-error-rate performance close to the case of perfect channel knowledge","PeriodicalId":326489,"journal":{"name":"Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2005-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133865953","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: 14

A Single-letter Upper Bound for the Sum Rate of Multiple Access Channels with Correlated Sources 具有相关信源的多址信道和速率的单字母上界

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-11-28 DOI: 10.1109/ACSSC.2005.1600066

Wei Kang, S. Ulukus

引用次数: 12

Time Reversal Based Microwave Hyperthermia Treatment of Breast Cancer 基于时间反转的微波热疗治疗乳腺癌

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-11-20 DOI: 10.1109/ACSSC.2005.1599752

Bingtuo Guo, Luzhou Xu, Jian Li

引用次数: 40

Performance of Turbo-Codes on Nakagami Flat Fading (Radio) Transmission Channels 涡轮码在中上平衰落(无线电)信道上的性能

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-11-01 DOI: 10.1109/ACSSC.2005.1599821

H. Balta, M. Kovaci, A. de Baynast

引用次数: 7

Distributed Compressed Sensing of Jointly Sparse Signals 联合稀疏信号的分布式压缩感知

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-11-01 DOI: 10.1109/ACSSC.2005.1600024

M. F. Duarte, S. Sarvotham, D. Baron, M. Wakin, Richard Baraniuk

引用次数: 577