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

Construction of M-QAM STCC Based on QPSK STCC 基于QPSK STCC的M-QAM STCC构建

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2006-05-14 DOI: 10.1109/ICASSP.2006.1660933

Christophe Rouchy, H. Sadjadpour

引用次数: 1

Waveform Correlation and Optimization Issues for MIMO Radar MIMO雷达的波形相关及优化问题

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599974

K. W. Forsythe, Daniel W. Bliss

引用次数: 131

Throughput Analysis of Selective Repeat ARQ in Fading Wireless Channels 衰落无线信道中选择性重复ARQ的吞吐量分析

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599697

K. Ausavapattanakun, Aria Nosratinia

引用次数: 0

Fast Acquisition for Transmitted Reference Ultra-Wideband Systems with Channelized Receiver 信道化接收机超宽带传输参考系统的快速采集

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599928

Lei Feng, W. Namgoong

引用次数: 1

A Joint Precoding and Scheduling Technique for Multiuser MIMO Systems 多用户MIMO系统的联合预编码和调度技术

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1600017

Feng Teng, K. Kiasaleh

引用次数: 3

A Hybrid ARQ Scheme for Resilient Packet Header Compression 弹性包头压缩的混合ARQ方案

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599696

V. Suryavanshi, Aria Nosratinia

{"title":"A Hybrid ARQ Scheme for Resilient Packet Header Compression","authors":"V. Suryavanshi, Aria Nosratinia","doi":"10.1109/ACSSC.2005.1599696","DOIUrl":"https://doi.org/10.1109/ACSSC.2005.1599696","url":null,"abstract":"In this work we address resilient packet header compression in a setup similar to RFC 3095 (robust header compression - ROHC), where a noisy feedback channel is available. We propose a new predictive hybrid ARQ (HARQ), using a systematic convolutional code with delay-limited interleaving. The compressed packet headers are bit interleaved, encoded, and the parity bits are loaded onto the packets in a manner that is consistent with existing standards. Our HARQ design is distinct from previous ones in that it cannot wait until the end of a codeword for retransmission, rather, ARQ's corresponding to individual packet headers arrive continually during a convolutional codeword and must be processed at that time. In our system, each time a NACK is encountered, the encoder estimates the state of the Viterbi decoder, deciding when a retransmission is necessary. The use of coding in conjunction with a specially designed interleaver, provides a flexible and powerful design methodology that makes it possible to improve the throughput via FEC and interleaving, while strictly limiting the delay to avoid timeout in higher layers. Simulations show that the throughput of the resulting system is superior to ROHC, and the delay is less sensitive to the channel conditions. Furthermore, over a large part of the operating range the delay is comparable to, or smaller than, the delay of RQHC","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":"117251605","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

Hybrid Hard/Soft Interference Cancellation Based on List Viterbi Decoding 基于List Viterbi译码的硬/软混合干扰消除

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599872

Wanlun Zhao, Renqiu Wang, G. Giannakis

引用次数: 0

Antenna Selection for Space-Time Coded Systems with Imperfect Channel Estimation 信道估计不完全时空编码系统的天线选择

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599963

Q. Ma, C. Tepedelenlioğlu

{"title":"Antenna Selection for Space-Time Coded Systems with Imperfect Channel Estimation","authors":"Q. Ma, C. Tepedelenlioğlu","doi":"10.1109/ACSSC.2005.1599963","DOIUrl":"https://doi.org/10.1109/ACSSC.2005.1599963","url":null,"abstract":"This paper studies the performance of antenna selection (AS) for space-time (ST) coded systems with noisy channel estimates. For coherent AS systems over Rayleigh flat fading channels, we derive the pairwise error probability (PEP) in the presence of imperfect channel estimation, where the channel is estimated using training insertion and minimum mean square error (MMSE) estimation. Multiplexed training is employed, where the antennas are multiplexed to the small number of RF chains available in the AS system. AS is performed only at the receiver, using the maximum estimated channel power selection rule. Both the maximum likelihood (ML) decoder taking into account the channel estimation error, and the minimum distance decoder are considered, and full diversity gain is shown to be preserved for both cases. Based on the derived training-based PEP, the effective SNR and the coding gain loss due to training are quantified for square unitary and orthogonal codes. The optimal power allocation between the training and data symbols is obtained by minimizing the PEP. For AS systems employing orthogonal designs, we further derive the exact PEP expression in closed-form. We also show that when square unitary training is employed, AS using the norm of MMSE channel estimates is equivalent to AS using the norm (power) of the received signal. Exploiting this fact, we propose an alternate training scheme which avoids multiplexing, has higher spectral efficiency, and better performance compared to the multiplexed training scheme. Simulations are shown to validate our analysis.","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":"124099217","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: 15

Pipelined Carry Lookahead Adder Design in Quantum-dot Cellular Automata 量子点元胞自动机中的流水线进位前瞻加法器设计

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599949

Heumpil Cho, E. Swartzlander

引用次数: 24

Low Cost Parallel Adaptive Filter Structures 低成本并行自适应滤波器结构

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ACSSC.2005.1599767

Chao Cheng, K. Parhi

引用次数: 2