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Adaptive Downlink Resource Allocation Strategies for Real-Time Data Services in OFDM Cellular Systems

EURASIP Journal on Wireless Communications and Networking volume 2006, Article number: 017526 (2006) Cite this article

Abstract

This paper presents a detailed performance analysis of adaptive downlink resource allocation based on users' instantaneous channel responses using power minimization (PM) and bandwidth constrained power minimization (BCPM) strategies. This study shows that, in cellular systems, where interference is a dominant factor, the link outage performance of a resource allocation strategy varies significantly depending on the user channel parameters. In particular, both analytical and simulation results indicate that the PM strategy outperforms BCPM in a mild shadowing environment. However, in severe shadowing conditions, this trend is reversed. This assessment holds true for both flat and frequency-selective fading.

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Authors and Affiliations

  1. Department of ECE, McGill University, 3480 University street, Montréal, Québec, H3A 2A7, Canada

    Navid Damji & Tho Le-Ngoc

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  1. Navid Damji
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  2. Tho Le-Ngoc
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Correspondence to Tho Le-Ngoc.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Damji, N., Le-Ngoc, T. Adaptive Downlink Resource Allocation Strategies for Real-Time Data Services in OFDM Cellular Systems. J Wireless Com Network 2006, 017526 (2006). https://doi.org/10.1155/WCN/2006/17526

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  • DOI: https://doi.org/10.1155/WCN/2006/17526

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