全雙工中繼網路於聯合解調之中斷概率分析;On Outage Analysis for Full-Duplex Relay Networks with Joint Decoding

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Title:	全雙工中繼網路於聯合解調之中斷概率分析;On Outage Analysis for Full-Duplex Relay Networks with Joint Decoding
Authors:	湯復喬;Tang, Fu-Qiao
Contributors:	通訊工程學系
Keywords:	全雙工;中繼網路;Full-Duplex;Relay Network
Date:	2017-08-09
Issue Date:	2017-10-27 14:02:24 (UTC+8)
Publisher:	國立中央大學
Abstract:	隨著大眾對行動數據的需求年年遞增，在頻譜資源有限的情形下，如何提高頻譜的使用率成為一熱門議題，而全雙工(full-duplex)因其可於同一時間、同一頻段傳送和接收訊息的能力，近年來受到熱烈討論，也是本篇論文所採用的系統架構。　　在本篇論文中，主要針對放大轉發(amplify-and-forward)和解碼轉發(decode-and-forward)兩種全雙工中繼節點(full-duplex relay)其中斷性能做討論。大部分的研究都專注於將自干擾(self-interference)訊號視作干擾來源，吾人提出一新的系統架構，將自干擾訊號用於協助接收端做訊息解碼，並推導出一端到端中斷概率之近似的封閉型式解。此外，在實際的系統模型中，中繼節點的處理延遲會大於1，吾人所提出的封閉型式解在此條件下依然適用。最後，吾人證實理論值會和程式模擬值的結果相符合，結果顯示吾人所提出的全雙工系統架構，其中斷效能會優於一般的全雙工和半雙工系統。 ;With the public demand for mobile data is increasing year by year, in the case of limited spectrum resources, how to improve the use of the spectrum becomes a hot topic. The full-duplex system has been widely discussed in recent years because of its capability in sending and receiving messages at the same time and the same frequency band, which is the system model adopted in this paper. This paper investigates the outage performance in full-duplex relay channel that adopts amplify-and-forward relay and decode-and-forward relay protocol. Previous works almost focused on that destination treated the self-interference signal as interference only. We provide a new system model which make self-interference signal assist information decoding at the destination, and we derived an approximate, yet accurate, closed-form expression for the end-to-end outage probability. In addition, the processing delay is larger than 1 in practice, the proposed close-form outage probability expression is still valid. Finally, we corroborate our theoretical results with simulations, the results indicate that the proposed system model can outperform traditional full-duplex and half-duplex systems.
Appears in Collections:	[Graduate Institute of Communication Engineering] Electronic Thesis & Dissertation

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