Capacity Improvement of Multihop Inter-Vehicle Communication Networks by STBC Cooperative Relaying

Toshiaki KOIKE  Masakazu TANAKA  Susumu YOSHIDA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E88-B   No.9   pp.3546-3553
Publication Date: 2005/09/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.9.3546
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Advances in Ad Hoc Mobile Communications and Networking)
Category: 
Keyword: 
ITS,  multihop,  inter-vehicle communications,  STBC,  cooperative relaying,  capacity,  

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Summary: 
In this paper, we evaluate the effect of space-time coded cooperative relaying technique in multihop inter-vehicle communication (IVC) networks. The IVC systems have an issue that communication links are often blocked by obstacles such as heavy vehicles. The breakage of a radio link in multihop connections may significantly decrease the system throughput in multihop IVC networks. It is demonstrated through system-level evaluations that the cooperative relaying can offer remarkable capacity enhancement by exploiting multi-route diversity and overcoming accidental link breakage resulting from frequent topological changes.