NDLI: An adaptive random access strategy for multi-channel relaying networks

Content Provider	Springer Nature Link
Author	Jiang, Fan Tian, Hui Zhang, Ping
Copyright Year	2009
Abstract	In this paper, an adaptive random access strategy is presented for multi-channel relaying networks to address the issue of random access of the non-real-time (NRT) services. In the proposed scheme, NRT services access the base station (BS) by first accessing the nearest relay node (RN). When collision occurs, for the sake of fast and efficient access, the user will begin a frequency domain backoff rather than randomly retry in time domain. A remarkable feature of this scheme is that the RN will adaptively determine the maximum allowed frequency backoff window at each access period. This is achieved according to the new arrival rate as well as the number of available access channels. Moreover, to alleviate the interference caused by sub-channel reuse among RNs, a fractional frequency reuse scheme is also considered. The analysis and numerical results demonstrate that our scheme achieves higher throughput, lower collision probability and lower access delay than conventional slotted Aloha as well as the scheme without frequency backoff window adaptation.
Starting Page	2406
Ending Page	2414
Page Count	9
File Format	PDF
ISSN	10092757
Journal	Science in China Series : Information Sciences
Volume Number	52
Issue Number	12
e-ISSN	18622836
Language	English
Publisher	SP Science in China Press
Publisher Date	2009-12-17
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	multi-channel relay random access backoff policies interference coordination Information Systems and Communication Service
Content Type	Text
Resource Type	Article
Subject	Computer Science

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