A Routing Agent Using Cross-Layer Method for Collision Avoidance in Ad Hoc Networks

Authors:
Zhipeng Liu;Chan-Heum Park;Bokman Lee;Chonggun Kim
Affiliations:
Dept. Of Computer Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, Korea;Dept. Of Computer Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, Korea;Dept. Of Computer Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, Korea;Dept. Of Computer Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, Korea
Venue:
KES-AMSTA '09 Proceedings of the Third KES International Symposium on Agent and Multi-Agent Systems: Technologies and Applications
Year:
2009

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Abstract

The cross-layer design approach is an important concept in ad-hoc networks which is adopted to solve several open issues. It aims to overcome MANET performance problems by allowing protocols belonging to different layers to cooperate and share network status information while still maintaining separated layers. In this work, we provide a routing agent of cross layer method which is based on the cooperation between Adjacency matrix routing protocol and the IEEE 802.11e MAC protocol. This proposal aims to avoid the congested nodes and guarantee better performance in terms of delay, packet delivery ratio, and so on. In the proposed method, each node maintains an adjacency matrix representing the network topology and MAC conditions with neighbors. The number of retransmissions in MAC layer is introduced as an indication of congestion. When the congestion occurs, the source node works as the routing agent to detect new route by checking MAC information and the adjacency matrix to the destination. The simulation results show that Cross layer give better performance than network layer only methods, especially in the frequent congestion condition.