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A Buffer-Aided Successive Relaying Technique with a Priori Decoding Information

선행 복호 정보를 활용한 버퍼기반 연쇄적 중계 기법

Lee, Byeong Su;Jung, Bang Chul;Ban, Tae-Won
이병수;정방철;반태원

  • Received : 2015.11.13
  • Accepted : 2015.12.21
  • Published : 2016.02.29

Abstract

In this paper, we propose a novel relay selection technique which utilizes a priori decoding information at relays for buffer-aided successive relaying networks. In the conventional relaying schemes, a single relay pair is selected for receiving data from the source and transmitting data to the destination. In the proposed technique, however, all relays except the relay selected for transmitting data to the destination try to decode the received signal from the source, and they store the data if they succeed decoding. The proposed technique selects the relay such that it can succeed its own transmission and it maximizes the number of relays successfully decoding the data from the source at the same time. It is shown that the proposed relaying technique significantly outperforms the conventional buffer-aided relaying schemes in terms of outage probability through extensive computer simulations.

Keywords

Cooperative Communications;Buffer-Aided Relay Networks;Relay Selection;Interference Cancellation

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Acknowledgement

Supported by : National Research Foundation of Korea (NRF)