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Performance analysis of the adaptive EXP/PF channel scheduler in an AMC/TDM system

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3 Author(s)

The adaptive EXP/PF AU; PL. DEFINE "EXP" ALSO channel scheduler proposed in Rhee et al. (2003) is an enhancement to the proportional fairness (PF) channel scheduler in that it guarantees delay sensitive services having the desired service delay outage probability as well as best-effort services in the forward link of an adaptive modulation and coding when used with time-division multiplexing (AMC/TDM) system. In this letter, assuming that there are many best-effort service users and one streaming service user requiring maximum delay constraints of 3 s, the system throughput of the adaptive EXP/PF scheduler is evaluated for different channel conditions of the streaming service user and is also compared with PF scheduler and its upper bound of throughput. The results show that the adaptive EXP/PF algorithm offers high system throughput as well as fairness among best-effort service users and guarantees streaming services of a desired delay constraint and outage probability.

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Communications Letters, IEEE  (Volume:8 ,  Issue: 8 )