Distributed Cooperative Routing Algorithm for Multi-Hop Multi-Relay Wireless Networks


IEICE TRANSACTIONS on Communications   Vol.E93-B   No.4   pp.1049-1052
Publication Date: 2010/04/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.1049
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
fading channel,  diversity gain,  cooperative routing,  path selection,  

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Motivated by the recent research in crosslayer design of cooperative wireless network, we propose a distributed cooperative routing algorithm for a multihop multi-relay wireless network to achieve selection diversity. We propose two algorithms, rate optimal path selection and outage optimal path selection, to satisfy the different requirements of the systems. Both algorithms work on distributed processing without requiring any centralized controller. Simulations are conducted to evaluate the performance of the proposal. The results of the simulations show that the proposed routing algorithms significantly improve the end-to-end data rate and outage performance compared with noncooperative routing protocols.