NDLI: Energy efficiency of relaying systems with ARQ and inter-relay listening

Content Provider	IEEE Xplore Digital Library
Author	Sheng Luo Yongxu Hu Kah Chan Teh
Copyright Year	2013
Description	Author affiliation: Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore (Sheng Luo; Yongxu Hu; Kah Chan Teh)
Abstract	Various advantages including higher order of diversity gain and transmission power saving can be obtained in wireless communications through relay-aided transmissions. In this paper, the energy efficiency of a wireless relaying system based on an automatic repeat request (ARQ) protocol is investigated. A system with multiple relays between a source node (SN) and a destination node (DN) is considered. The signal transmission consists of two phases and in each phase the ARQ protocol is used. Some of the relay nodes are selected for forwarding the message and overhearing between them in the second phase is allowed. As a result, the number of relay nodes that can decode source message increases as the ARQ round goes on. The energy efficiency of two relaying schemes, namely the selection relay (SR) scheme and the distributed space-time block coding (D-STBC) scheme, are investigated. It is shown that the energy efficiency of the system can be improved through inter-relay listening and the SR-ARQ scheme has better energy efficiency as compared with the D-STBC scheme.
Starting Page	1
Ending Page	5
File Size	144169
Page Count	5
File Format	PDF
e-ISBN	9781479904341
DOI	10.1109/ICICS.2013.6782900
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-10
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic repeat request Relays Decoding Tin Wireless communication Protocols Wireless sensor networks D-STBC Cooperative relay ARQ Energy efficiency
Content Type	Text
Resource Type	Article

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