MARS: a multiple access scheme with sender driven and reception first for smart antenna in ad hoc networks

Authors:
Wei Kuang Lai;Kuo-Shu Tseng;Jiunn-Ching Chen
Affiliations:
Department of Computer Science and Engineering, National Sun Yat-Sen University, Taiwan;Department of Computer Science and Engineering, National Sun Yat-Sen University, Taiwan;Department of Computer Science and Engineering, National Sun Yat-Sen University, Taiwan
Venue:
Wireless Communications & Mobile Computing
Year:
2009

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Abstract

The deployment of directional antennas offers many advantages, such as transmission range extension, co-channel interference reducing, the increasing of spatial reuse degree, throughput improving of networks, and transmission power saving. Hence, many ad hoc MAC protocols with directional antennas have been proposed. However, these protocols do not provide significant improvement of network performance due to the lack of supporting multiple transmissions and receptions simultaneously. With the adaptive beam-forming system (Smart Antenna), a newly designed MAC protocol (MARS) that enables nodes with multiple transmissions and receptions is proposed. Simulation results show that our MARS do exploit the advantage of space division multiple access. In terms of total number of data forward and complete sessions in bottleneck nodes, MARS achieves three times better than Novel and nine times better than IEEE 802.11. In addition, the end-to-end delay keeps very short. Copyright © 2008 John Wiley & Sons, Ltd.