New Prioritization Function for User Scheduling in OFDMA Systems

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Executive Summary

The Orthogonal Frequency Division Multiple Access (OFDMA) scheme has been selected for most of the Broadband Wireless Access emerging standards. One of the main benefits from the OFDMA scheme comes from the efficient multiplexing capability which can be combined with user scheduling to obtain high gains from multiuser diversity. The main problem when several users are considered is that each user demands different Quality of Service (QoS) requirements which the scheduling function must cope with. In this paper a new prioritization function is proposed where the resource allocation problem is divided in two phases, minimum requirements satisfaction, and spectral efficiency maximization.

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