Delay-Oriented Routing Protocol for Wireless Ad Hoc Networks

Shiann-Tsong SHEU
Tihjia TSAI
Jenhui CHEN

IEICE TRANSACTIONS on Communications   Vol.E84-B    No.6    pp.1581-1587
Publication Date: 2001/06/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on New Developments on QoS Technologies for Information Networks)
ad hoc,  MAC,  QoS,  

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In wireless ad hoc mobile network, a host desires to communicate with another host may need some intermediate nodes to relay data packets. To maximize the channel resource utilization and minimize the network transfer delay along the path, the shortest path with minimum hops approach is often adapted. However, by considering the employing medium access control (MAC) protocol, the minimum transfer delay from source to destination may be achieved by choosing a longer path but with less contention delay. In this paper, we will propose an efficient delay-oriented routing protocol for mobile ad hoc wireless networks. The expected access contention delay of IEEE 802.11 protocol is analyzed to support the routing decision. Simulation results show that the derived path length in proposed delay-oriented routing protocol is slightly higher than that of conventional shortest path with minimum hops approach but it can significantly reduce both average transfer delay and packet loss rate.