Fair Scheduling in OFDMA-based Wireless Systems with QoS Constraints

Details Fair Scheduling in OFDMA-based Wireless Systems with QoS Constraints Fair Scheduling in OFDMA-based Wireless Systems with QoS Constraints

2007-11-08

arxiv.org/abs/0711.1269v1

International OFDM Workshop, Hamburg Germany on Aug. 30th 2007 (Inowo 07)

Computer Science

Networking and Internet Architecture

Presented at International OFDM Workshop, Hamburg Germany on Aug. 30th 2007 (Inowo 07)

Scientific paper

In this work we consider the problem of downlink resource allocation for proportional fairness of long term received rates of data users and quality of service for real time sessions in an OFDMA-based wireless system. The base station allocates available power and bandwidth to individual users based on long term average received rates, QoS based rate constraints and channel conditions. We solve the underlying constrained optimization problem and propose an algorithm that achieves the optimal allocation. Numerical evaluation results show that the proposed algorithm provides better QoS to voice and video sessions while providing more and fair rates to data users in comparison with existing schemes.

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