The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
A retransmissão de seleção é uma técnica promissora para implementação prática de sistemas cooperativos com múltiplos nós de retransmissão. Contudo, para selecionar o melhor relé, é necessário conhecimento global do canal por parte da entidade selecionadora, o que pode resultar em considerável sobrecarga de sinalização. Neste artigo, consideramos o problema de seleção de relés em sistemas de comunicação amplificados e encaminhados (AF) de salto duplo com informação parcial do estado do canal (CSI). São apresentadas estratégias de seleção de relés visando minimizar a probabilidade de interrupção ou a taxa de erro de bit (BER) com CSI quantizado disponível. Também propomos um quantizador baseado em taxa alvo para particionar eficientemente a faixa SNR para seleção de relé minimizado por interrupção, e um quantizador alvo baseado em BER para seleção de relé minimizado BER. Os resultados da simulação mostram que o desempenho próximo do ideal é alcançável com alguns bits de feedback para a entidade selecionadora.
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Zhaoxi FANG, Xiaolin ZHOU, Yu ZHU, Zongxin WANG, "Relay Selection in Amplify-and-Forward Systems with Partial Channel Information" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 3, pp. 704-711, March 2010, doi: 10.1587/transcom.E93.B.704.
Abstract: Selection relaying is a promising technique for practical implementation of cooperative systems with multiple relay nodes. However, to select the best relay, global channel knowledge is required at the selecting entity, which may result in considerable signaling overhead. In this paper, we consider the relay selection problem in dual-hop amplify-and-forward (AF) communication systems with partial channel state information (CSI). Relay selection strategies aiming at minimizing either the outage probability or the bit error rate (BER) with quantized CSI available are presented. We also propose a target rate based quantizer to efficiently partition the SNR range for outage minimized relay selection, and a target BER based quantizer for BER minimized relay selection. Simulation results show that near optimal performance is achievable with a few bits feedback to the selecting entity.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.704/_p
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@ARTICLE{e93-b_3_704,
author={Zhaoxi FANG, Xiaolin ZHOU, Yu ZHU, Zongxin WANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Relay Selection in Amplify-and-Forward Systems with Partial Channel Information},
year={2010},
volume={E93-B},
number={3},
pages={704-711},
abstract={Selection relaying is a promising technique for practical implementation of cooperative systems with multiple relay nodes. However, to select the best relay, global channel knowledge is required at the selecting entity, which may result in considerable signaling overhead. In this paper, we consider the relay selection problem in dual-hop amplify-and-forward (AF) communication systems with partial channel state information (CSI). Relay selection strategies aiming at minimizing either the outage probability or the bit error rate (BER) with quantized CSI available are presented. We also propose a target rate based quantizer to efficiently partition the SNR range for outage minimized relay selection, and a target BER based quantizer for BER minimized relay selection. Simulation results show that near optimal performance is achievable with a few bits feedback to the selecting entity.},
keywords={},
doi={10.1587/transcom.E93.B.704},
ISSN={1745-1345},
month={March},}
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TY - JOUR
TI - Relay Selection in Amplify-and-Forward Systems with Partial Channel Information
T2 - IEICE TRANSACTIONS on Communications
SP - 704
EP - 711
AU - Zhaoxi FANG
AU - Xiaolin ZHOU
AU - Yu ZHU
AU - Zongxin WANG
PY - 2010
DO - 10.1587/transcom.E93.B.704
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2010
AB - Selection relaying is a promising technique for practical implementation of cooperative systems with multiple relay nodes. However, to select the best relay, global channel knowledge is required at the selecting entity, which may result in considerable signaling overhead. In this paper, we consider the relay selection problem in dual-hop amplify-and-forward (AF) communication systems with partial channel state information (CSI). Relay selection strategies aiming at minimizing either the outage probability or the bit error rate (BER) with quantized CSI available are presented. We also propose a target rate based quantizer to efficiently partition the SNR range for outage minimized relay selection, and a target BER based quantizer for BER minimized relay selection. Simulation results show that near optimal performance is achievable with a few bits feedback to the selecting entity.
ER -