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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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Affiliations

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

    Navid Damji & Tho Le-Ngoc

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

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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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Keywords

  • Resource Allocation
  • Performance Analysis
  • System Application
  • Dominant Factor
  • Cellular System