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

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          Abstract

          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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          Author and article information

          Journal
          2007-11-08
          Article
          10.1109/ccnc08.2007.209
          0711.1273
          71d7de6c-76a8-4cfb-b91e-39013ed18a58
          History
          Custom metadata
          To be presented at 2nd IEEE International Broadband Wireless Access Workshop. Las Vegas, Nevada USA Jan 12 2008
          To be presented at 2nd IEEE International Broadband Wireless Access Workshop. Las Vegas, Nevada USA Jan 12 2008
          cs.NI

          Networking & Internet architecture
          Networking & Internet architecture

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