Performance Analysis of Adaptive Modulation with Optimum Power Control in Cellular Systems

Ramesh, A and Chockalingam, A (2000) Performance Analysis of Adaptive Modulation with Optimum Power Control in Cellular Systems. In: 2000 IEEE International Conference on Personal Wireless Communications, 17-20 December, Hyderabad,India, pp. 193-197.

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Abstract

We derive the system throughput and outage probability performance of adaptive modulation with optimal power control in log-normal shadowing and multipath Rayleigh fading channels. We propose two objective functions, namely, maximum SIR optimum power control and minimum outage probability optimum power control. A dynamic programming-based solution to find the optimum transmit power vector is presented. System performance achieved using the proposed objective functions is compared with the performance achieved using other objective functions considered by Qiu et al., (1999). Our results show that: (a) in terms of total system throughput, adaptive modulation with optimum power control gives the best performance compared to other schemes; (b) in terms of outage probability, minimum outage probability optimum power control gives the best performance; and (c) maximum SIR optimum power control benefits every user in the system by evenly distributing the system capacity.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 1990 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.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	27 Feb 2006
Last Modified:	19 Sep 2010 04:23
URI:	http://eprints.iisc.ac.in/id/eprint/5567

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