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Title: Capacity scaling in mobile wireless ad hoc network with infrastructure support
Authors: Huang, Wentao
Wang, Xinbing
Zhang, Qian
Keywords: Ad hoc wireless networks
Hybrid wireless network
Scaling law
Issue Date: Jun-2010
Citation: Proceedings 30th IEEE International Conference on Distributed Computing Systems (ICDCS), 21-25 June 2010, Genova, Italy, p. 848-857.
Abstract: We study the throughput capacity of mobile wireless ad hoc networks with infrastructure support. Mobility and infrastructure support independently have been shown to be effective ways to improve capacity, but few work has analyzed the impact of their combination. In our work we consider an ad hoc network with n users and k base stations. All base stations are wired to each other with bandwidth c(n). We adopt a general mobility model where users move with arbitrary patterns within a bounded distance around their home-points, and let the area of the network scales as f2(n). We show that for different parameters, mobility can be divided into strong, weak and trivial regimes. The per-node capacity is Θ(1/f(n)) + Θ(min(k2 c/n, k/n)) under strong mobility, and is Θ(min(k2 c/n, k/n)) in the two latter cases. We also discuss optimal communication schemes and system parameters in each regime. Our study provides fundamental insight on the understanding and design of wireless ad hoc network.
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