Connectivity of Wireless Ad Hoc Networks with Random Beamforming: An Analytical Approach
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Jones, Haley
Zhou, Xiangyun
Durrani, Salman
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Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Random beamforming, where each node selects a main beam direction without any coordination with other nodes, has been proposed as a simple technique to improve connectivity in wireless ad hoc networks. This paper presents an analytical model for evaluating the impact of random beamforming on the connectivity of wireless ad hoc networks in the presence of path loss and shadowing effects. We investigate the connectivity with random beamforming from the view points of a single node and the entire network. The correctness of our analytical approach is validated by comparing the analytical results with simulations. We show that for a path loss exponent of α < 3, irrespective of shadowing effects, random beamforming improves both the local and overall connectivity compared to omnidirectional antennas.
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Keywords: Analytical approach; Analytical model; Analytical results; Main beams; Omni-directional antenna; Path loss; Path loss exponent; Random beamforming; Shadowing effects; Ad hoc networks; Directive antennas; Radio communication; Wireless ad hoc networks; Wire
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Proceedings of IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2008)
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Conference paper
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2037-12-31
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