中繼站選取結合增強型動態解碼轉傳和網路編碼在雙向中繼站通道之效能分析

Performance Analysis of Relay Selection With Enhanced Dynamic Decode-and-Forward and Network Coding in Two-Way Relay Channels

劉祐蓁(Yu-Chen Liu)

指導教授 ： 劉維正

國立中正大學/工學院/通訊工程學系/碩士(2013年)

摘要

在本篇論文中，我們在一個二躍式雙向多中繼站之網路中將增強型動態解碼轉傳(Enhanced Dynamic Decode-and-Forward, EDDF)與網路編碼(network coding, NC)系統套用2006年由Bletsas、 Khisti、 Reed 和 Lippman 所提出的中繼站選擇(relay selection, RS)策略。所有節點皆為單輸入單輸出(single-input single-output, SISO)與半雙工(half-duplex)，也就是它們不能同時傳輸與接收資料。我們分析了中斷機率並且展示在瑞雷、萊斯和仲上衰減通道之下各種情景之中斷機率的比較。我們的結果顯示，如果中繼站的數量足夠的話，中繼站選擇與增強型動態解碼轉傳結合網路編碼(RS-EDDF&NC)擁有所有考慮的系統中最佳的中斷機率。此外，如果我們隨機選擇中繼站，則效能損失會很大。這顯示了中繼站選擇策略的重要性。

關鍵字

合作式通訊

並列摘要

In this thesis, we adopt the relay selection (RS) protocol proposed by Bletsas,Khisti, Reed and Lippman (2006) with Enhanced Dynamic Decode-and-Forward(EDDF) and network coding (NC) system in a two-hop two-way multi-relay network.All nodes are single-input single-output (SISO) and half-duplex, i.e., they cannot transmit and receive data simultaneously. The outage probability is analyzed and we show comparisons of outage probability with various scenarios under Rayleigh, Rician and Nakagami fading channels. Our results show that the relay selection with EDDF and network coding (RS-EDDF&NC) scheme has the best performance in the sense of outage probability upon the considered decode-and-forward (DF) relaying if there exist sufficiently relays. In addition, the performance loss is large if we select a
relay at random. This shows the importance of relay selection strategies.

並列關鍵字

Cooperative Communications

參考文獻

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