CSIT-adaptive multiuser resource management for space-time coded MIMO/OFDM systems

Weilan Huang, Khaled Letaief, Ying Jun Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Efficient resource management is a major issue in the operation of wireless communication systems given the limited resource availability. In contrast to most existing resource allocation techniques that assume perfect channel state information at the transmitter (CSIT), a novel adaptive resource management algorithm is proposed to optimize the spectral efficiency of a multiuser multi-input multi-output (MIMO)/ orthogonal frequency division multiplexing (OFDM) system where only partial channel state information is available. With a space-time-block-coded beamformer employed at each mobile station, the proposed algorithm adaptively allocates subcarrier, bit, and power to realize efficient resource utilization. A distinctive feature of the proposed method is that the allocation strategy is directly related to the users' spatial correlation and the quality of channel feedback information. Numerical results will show that the proposed scheme achieves significant throughput improvement compared to non-adaptive systems. It will be also demonstrated that our proposed method outperforms a scheme which decouples the allocation problem into single-user optimization problems by introducing user-grouping.

Original languageEnglish
Title of host publication2006 IEEE International Conference on Communications, ICC 2006
Pages4397-4402
Number of pages6
Volume10
DOIs
Publication statusPublished - 2006
Externally publishedYes
Event2006 IEEE International Conference on Communications, ICC 2006 - Istanbul, Turkey
Duration: 11 Jul 200615 Jul 2006

Other

Other2006 IEEE International Conference on Communications, ICC 2006
CountryTurkey
CityIstanbul
Period11/7/0615/7/06

Fingerprint

Channel state information
Orthogonal frequency division multiplexing
Transmitters
Resource allocation
Communication systems
Throughput
Availability
Feedback

Keywords

  • Adaptive modulation
  • Adaptive resource allocation
  • Beamforming
  • Correlation
  • MIMO OFDM
  • Multiple access
  • Multiuser detection (MUD)
  • Partial CSI

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Huang, W., Letaief, K., & Zhang, Y. J. (2006). CSIT-adaptive multiuser resource management for space-time coded MIMO/OFDM systems. In 2006 IEEE International Conference on Communications, ICC 2006 (Vol. 10, pp. 4397-4402). [4024728] https://doi.org/10.1109/ICC.2006.255330

CSIT-adaptive multiuser resource management for space-time coded MIMO/OFDM systems. / Huang, Weilan; Letaief, Khaled; Zhang, Ying Jun.

2006 IEEE International Conference on Communications, ICC 2006. Vol. 10 2006. p. 4397-4402 4024728.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Huang, W, Letaief, K & Zhang, YJ 2006, CSIT-adaptive multiuser resource management for space-time coded MIMO/OFDM systems. in 2006 IEEE International Conference on Communications, ICC 2006. vol. 10, 4024728, pp. 4397-4402, 2006 IEEE International Conference on Communications, ICC 2006, Istanbul, Turkey, 11/7/06. https://doi.org/10.1109/ICC.2006.255330
Huang W, Letaief K, Zhang YJ. CSIT-adaptive multiuser resource management for space-time coded MIMO/OFDM systems. In 2006 IEEE International Conference on Communications, ICC 2006. Vol. 10. 2006. p. 4397-4402. 4024728 https://doi.org/10.1109/ICC.2006.255330
Huang, Weilan ; Letaief, Khaled ; Zhang, Ying Jun. / CSIT-adaptive multiuser resource management for space-time coded MIMO/OFDM systems. 2006 IEEE International Conference on Communications, ICC 2006. Vol. 10 2006. pp. 4397-4402
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