Analysis of Throughput and Fairness With Downlink Scheduling in WCDMA Networks

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Executive Summary

This paper is concerned with the throughput and fairness analysis in a downlink WCDMA network. The channel model is assumed to include path loss, lognormal shadowing and fast Rayleigh fading. The scheduling schemes investigated are the Round Robin scheme, the maximum Carrier-to-Interference ratio (C/I) scheme, the proportional fair scheme, the maximum instantaneous signal scheme, and the fading-based signal power scheme. By using an approximation of the probability density function of C/I, throughput and fairness expressions are derived, and a performance comparison among the five scheduling schemes is given. The results indicate that throughput and fairness performance of each scheduling scheme depends on mobile users' location.

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