A Precoding Scheme for Semi-Blind Channel Estimation in Cooperative Networks
碩士 === 國立中山大學 === 通訊工程研究所 === 100 === In this thesis, we proposed a precoding scheme for semi-blind channel estimation in amplify-and-forward (AF) multipath two-way relay networks (TWRN), where two terminals exchange their information through multi-relays. The precoding scheme, which diminishes comp...
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ndltd-TW-100NSYS56500882015-10-13T21:22:19Z http://ndltd.ncl.edu.tw/handle/61339759156485161139 A Precoding Scheme for Semi-Blind Channel Estimation in Cooperative Networks 合作式網路中使用預編碼之半盲式通道估測 Yen-cheng Chen 陳彥澄 碩士 國立中山大學 通訊工程研究所 100 In this thesis, we proposed a precoding scheme for semi-blind channel estimation in amplify-and-forward (AF) multipath two-way relay networks (TWRN), where two terminals exchange their information through multi-relays. The precoding scheme, which diminishes computational complexity of semi-blind channel estimator, is used to distinguish received signal at both terminals from multi-relays. By applying a non-redundant linear precoding scheme at multi-relays, we proposed a semi-blind channel estimation to estimate the channel impulse response (CIR) of direct link and the cascaded source-relay-terminal links. Firstly, semi-blind channel estimation adopts least-square (LS) estimation to find the CIR of direct link between both terminals using a smaller number of training symbols. Secondly, the CIR of the cascaded source-relay-terminal links are obtained through second-order statistics (SOS) of received signals at both terminals. Consequently, the proposed scheme can effectively reduce the computational complexity and enhance the spectral efficiency in overall system. Simulation results corroborate the effectiveness of the proposed scheme. Chih-Peng Li 李志鵬 2012 學位論文 ; thesis 61 zh-TW |
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碩士 === 國立中山大學 === 通訊工程研究所 === 100 === In this thesis, we proposed a precoding scheme for semi-blind channel estimation in amplify-and-forward (AF) multipath two-way relay networks (TWRN), where two terminals exchange their information through multi-relays. The precoding scheme, which diminishes computational complexity of semi-blind channel estimator, is used to distinguish received signal at both terminals from multi-relays.
By applying a non-redundant linear precoding scheme at multi-relays, we proposed a semi-blind channel estimation to estimate the channel impulse response (CIR) of direct link and the cascaded source-relay-terminal links. Firstly, semi-blind channel estimation adopts least-square (LS) estimation to find the CIR of direct link between both terminals using a smaller number of training symbols. Secondly, the CIR of the cascaded source-relay-terminal links are obtained through second-order statistics (SOS) of received signals at both terminals.
Consequently, the proposed scheme can effectively reduce the computational complexity and enhance the spectral efficiency in overall system. Simulation results corroborate the effectiveness of the proposed scheme.
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author2 |
Chih-Peng Li |
author_facet |
Chih-Peng Li Yen-cheng Chen 陳彥澄 |
author |
Yen-cheng Chen 陳彥澄 |
spellingShingle |
Yen-cheng Chen 陳彥澄 A Precoding Scheme for Semi-Blind Channel Estimation in Cooperative Networks |
author_sort |
Yen-cheng Chen |
title |
A Precoding Scheme for Semi-Blind Channel Estimation in Cooperative Networks |
title_short |
A Precoding Scheme for Semi-Blind Channel Estimation in Cooperative Networks |
title_full |
A Precoding Scheme for Semi-Blind Channel Estimation in Cooperative Networks |
title_fullStr |
A Precoding Scheme for Semi-Blind Channel Estimation in Cooperative Networks |
title_full_unstemmed |
A Precoding Scheme for Semi-Blind Channel Estimation in Cooperative Networks |
title_sort |
precoding scheme for semi-blind channel estimation in cooperative networks |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/61339759156485161139 |
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