Practical Resource Allocation Algorithms for QoS in OFDMA-based Wireless Systems

Details Practical Resource Allocation Algorithms for QoS in OFDMA-based Wireless Systems Practical Resource Allocation Algorithms for QoS in OFDMA-based Wireless Systems

2007-11-08

arxiv.org/abs/0711.1273v1

To be presented at 2nd IEEE International Broadband Wireless Access Workshop. Las Vegas, Nevada USA Jan 12 2008

Computer Science

Networking and Internet Architecture

To be presented at 2nd IEEE International Broadband Wireless Access Workshop. Las Vegas, Nevada USA Jan 12 2008

Scientific paper

In this work we propose an efficient resource allocation algorithm for OFDMA based wireless systems supporting heterogeneous traffic. The proposed algorithm provides proportionally fairness to data users and short term rate guarantees to real-time users. Based on the QoS requirements, buffer occupancy and channel conditions, we propose a scheme for rate requirement determination for delay constrained sessions. Then we formulate and solve the proportional fair rate allocation problem subject to those rate requirements and power/bandwidth constraints. Simulations results show that the proposed algorithm provides significant improvement with respect to the benchmark algorithm.

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