A Heuristic Method for Channel Allocation and Scheduling in an OFDMA System

  • Hwang, Sung-Ho (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Park, Joon-Goo (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Jang, Youn-Seon (Division of Electrical Engineering. Chungnam National University) ;
  • Cho, Ho-Shin (School of Electrical Engineering and Computer Science, Kyungpook National University)
  • Received : 2008.05.08
  • Accepted : 2008.07.01
  • Published : 2008.10.31

Abstract

In this letter, a heuristic channel allocation and scheduling scheme is proposed. By comparing the size of the alternative-factor assessment, which is obtained by simple calculation, we can easily find the most appropriate channel for each user for overall throughput enhancement. Numerical results show that the downlink throughput of the proposed scheme is higher than that of proportional fairness and is almost the same as that of the maximum C/I scheme, while user fairness remains better than that of the maximum C/I scheme.