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Performance Analysis of Microcellization for Supporting Two Mobility Classes in Cellular Wireless Networks

Maheshwari, Krishnan and Kumar, Anurag (2000) Performance Analysis of Microcellization for Supporting Two Mobility Classes in Cellular Wireless Networks. In: IEEE Transactions on Vehicular Technology, 49 (2). pp. 321-333.

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Abstract

We study the call blocking performance obtained by microcellizing a macrocell network. Each macrocell is partitioned into microcells, and some of the channels originally allocated to the macrocell are assigned to the microlayer cells according to a reuse pattern. The arriving calls are classified as fast or slow; fast calls are always assigned only to macrocell channels, whereas for slow calls a microcell channel is first sought. Slow calls may be allowed to overflow to the macrolayer, but may be repacked to vacated microcell channels. Calls can change their mobility class during a conversation. We develop an approximate analysis for computing the slow and fast call blocking probabilities in such a system. We adopt the technique of analyzing an isolated macrocell with the Poisson arrival assumption and then iterating on the stationary analysis of the isolated macrocell to obtain stationary results for the multicell system. Simple, but accurate approximations are developed for analyzing the isolated macrocell and its associated microcells, The analyses based on the approximate isolated cell model are validated against simulations of a multicell model.

Item Type: Journal Article
Additional Information: ©2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: Fast and slow mobiles;macrocells;microcells;repacking,TDM cellular wireless networks;traffic engineering of TDM cellular networks
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 25 Aug 2008
Last Modified: 19 Sep 2010 04:15
URI: http://eprints.iisc.ernet.in/id/eprint/1792

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