Collision Prevention for Exploiting Spatial Reuse in Ad Hoc Network Using Directional Antenna

Authors:
Pu Qingxian;Won-Joo Hwang
Affiliations:
Department Information and Communications Engineering, Inje University, Gimhae, South Korea 621-749;Department Information and Communications Engineering, Inje University, Gimhae, South Korea 621-749
Venue:
ICIC '08 Proceedings of the 4th international conference on Intelligent Computing: Advanced Intelligent Computing Theories and Applications - with Aspects of Theoretical and Methodological Issues
Year:
2008

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Abstract

To improve the performance of a wireless Ad Hoc network at the MAC layer, one way is to prevent collision and allow spatial reuse among neighbor nodes as much as possible. In this paper, we present a novel MAC protocol that prevents collision and supports spatial reuse. The proposed MAC protocol uses a control window between RTS/CTS packets and DATA/ACK packets which allows neighbor nodes to exchange control packets inserted to realize spatial reuse. Simulation result shows the advantages of our proposal in comparison with existing MAC in terms of network throughput and end-to-end delay.