Seung Ug Kwag, Kwang Bae Lee, Hyun Ug Kim

The KIPS Transactions:PartC, Vol. 8, No. 4, pp. 459-468, Aug. 2001
10.3745/KIPSTC.2001.8.4.459,   PDF Download:

Abstract

There can exist unidirectional links due to asymmetric property of mobile terminals or current wireless environments in practical mobile Ad Hoc networks. However, at present, the existing mobile Ad Hoc routing protocols except Zone Routing Protocol are implemented to support only bidirectional links. Thus, in this paper, we propose a new unidirectional routing protocol using dynamic source routing in order for the existing Dynamic Source Routing protocol to be run on mobile Ad Hoc networks containing unidirectional links. The proposed unidirectional routing protocol uses new route discovery and route maintenance methods for efficient routing on unidirectional links. For performance evaluation, we insert program codes for the proposed protocol into the NS-2 simulator of U.C. Berkeley. In order to obtain evaluation parameters, we use combinations of mobility pattern files and connection pattern files from Carnegie Mellon University. We consider received data rate and average route discovery time as evaluation criteria, which are compared and evaluated for three proposed route discovery methods.

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