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Downlink Scheduling with AMC and FCS in WCDMA Networks

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2 Author(s)
Hua Fu ; Nat. Univ. of Singapore, Singapore ; Dong In Kim

This paper is concerned with the throughput and fairness analysis in a downlink WCDMA network with adaptive modulation and coding (AMC) and fast cell selection (FCS). The downlink scheduling schemes investigated include (i) the Round Robin scheme, (ii) the maximum carrier-to-interference ratio (C/I) scheme, and (iii) the proportional fair scheme. The channel model is assumed to include path loss, lognormal shadowing and fast Rayleigh fading. By using a form analogous to Shannon's channel capacity equation, a logrithmic relation between the instantaneous data rate and the C/I with AMC is first established. Using generalized Bernoulli trial, FCS is then examined in detail. Finally, the throughput and fairness expressions for the abovementioned downlink scheduling schemes with FCS are derived.

Published in:

Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE

Date of Conference:

26-30 Nov. 2007