Performance Improvement of an Ad Hoc Network System for Wireless Data Service

Takayuki YAMAMOTO  Masashi SUGANO  Masayuki MURATA  Takaaki HATAUCHI  Yohei HOSOOKA  

IEICE TRANSACTIONS on Communications   Vol.E86-B    No.12    pp.3559-3568
Publication Date: 2003/12/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Terrestrial Radio Communications
ad hoc wireless network,  routing protocol,  simulation,  analysis,  

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In ad hoc wireless networks, wireless terminals can autonomously construct and can maintain the network. They communicate with some neighbor terminals, exchange network information and determine routes for packets on the multi-hop wireless network. Flexible Radio Network (FRN), one of the ad hoc wireless network systems, adopts a proprietary protocol that provides a multiple routes management and a packet retransmission mechanism against packet transmission errors. This system is a commercial product that has been in use in a recent few years. In this paper, we first evaluate the performance through simulations for data-link protocol and routing protocol of the FRN to clarify its basic properties. Furthermore, we propose some techniques that enhance its performance and solve problems on the protocols. We show how they improve the system performance through simulations and analyses.