Adaptive resource allocation and scheduling for multiuser packet-based OFDM networks

Ying Jun Zhang, Khaled Ben Letaief

Research output: Contribution to journalConference article

45 Citations (Scopus)

Abstract

As we move towards the next generation wireless communications systems featured by all IP-based protocols and heterogeneous traffic calls, new issues arise in designing resource management algorithms. They include the random packet arrival, limited buffer space, various QoS requirements, and user fairness. In this paper, we propose a cross-layer adaptive resource allocation algorithm for packet-based OFDM systems. This algorithm takes into consideration not only the physical channel conditions but also the random traffic arrival, QoS requirements, and user fairness observed at the link layer. Results show that the proposed algorithm greatly enhances the system spectral efficiency and improves the queuing performance thanks to the successful exploitation of statistical multiplexing flexibility and system diversity in the frequency, time and user domains.

Original languageEnglish
Pages (from-to)2949-2953
Number of pages5
JournalIEEE International Conference on Communications
Volume5
Publication statusPublished - 30 Aug 2004
Event2004 IEEE International Conference on Communications - Paris, France
Duration: 20 Jun 200424 Jun 2004

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Keywords

  • Cross-layer adaptive resource allocation
  • OFDM
  • Packet scheduling
  • Packet-level multiplexing

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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