Downlink packet scheduling with minimum throughput guarantee in TDD-OFDMA cellular network

Young Min Ki, Eun Sun Kim, Sung Il Woo, Dong Ku Kim

Research output: Contribution to journalConference article

2 Citations (Scopus)


This paper proposes a channel scheduler in downlink of IEEE 802.16e TDD-OFDMA cellular network which provides users the minimum throughput for best effort traffic. The proposed scheduler is further developed in the consideration of the case that network might become unfeasible, where extra weight functions are introduced into the proportional fair (PF) scheduler so that the proposed extra weight function provides more resources to users who are easier to achieve the target throughput than those who cannot. It does not guarantee target through-put for all users but eventually increases the number of users being served with the guaranteed minimum throughput. It is investigated for the proposed schedulers and other conventional ones how large the throughput is and how many users are guaranteed the target throughput. Simulation results show that the proposed algorithms have 10 to 20 % more users being served with the minimum guaranteed throughput. The trade-off between the throughput guarantee level and sector throughput is shown in the proposed schedulers.

Original languageEnglish
Pages (from-to)623-633
Number of pages11
JournalLecture Notes in Computer Science
Publication statusPublished - 2005 Sep 26
Event4th International IFIP-TC6 Networking Conference: Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communications Systems, NETWORKING 2005 - Waterloo, Ont., Canada
Duration: 2005 May 22005 May 6


All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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