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http://dx.doi.org/10.6109/JKIICE.2009.13.11.2447

Performance Analysis of Directional Communication for Wireless Ad Hoc Networks  

Lee, Sin-Kyu (군산대학교 전자정보공학부)
Hong, Jin-Dae (군산대학교 전자정보공학부)
Kim, Hyun-Tae (군산대학교 BK-21 지능형 임베디드시스템 인력양성사업팀)
Ra, In-Ho (군산대학교 전자정보공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.13, no.11, 2009 , pp. 2447-2458 More about this Journal
Abstract
Ad hoc wireless networks operate without any infrastructure where a node can be a source and a router at the same time. This indispensably requires high throughput and low delay performance throughout the wireless network coverage span, particularly under heavy traffic conditions. Recent research on using multiple antennas in beam-forming or multiplexing modes over a wireless channel has shown promising results in terms of high throughput and low delay. Directional antennas have shown to increase spatial reuse by allowing multiple transmitters and receivers to communicate using. directional beams as long as they do not significantly interfere with each other. However directional antenna performance asymptotically approaches the omni-directional performance in a high density ad hoc network. Simulation results in QualNet validate that average throughput and packet corruption ratio of directional antenna approach omni-directional performance. Moreover, we further highlight some important issues pertaining to the directional antenna performance in wireless networks.
Keywords
Wireless Ad hoc Network; Directional MAC; Interference; MIMO;
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