On the multi-rate division with limited feedback for one source multiple destinations wireless transmission systems

Chen Zhi, Pingyi Fan, Khaled Letaief

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

Abstract

Multiuser diversity is inherent in wireless networks due to independent channel variations of different users. It requires that the transmitter has the knowledge of the channel state information (CSI) of each user in the downlink. Too much feedback will bring a heavy load to the system in some cases. This paper investigates the problem of exploiting multiuser diversity in a one source multiple destinations wireless transmission system with limited feedback. A strategy for obtaining the optimal multiple rate level and the maximum achievable sum rate is proposed in this paper. Moreover, the scheduling outage probability, the probability that rates of all users are below a threshold, is also analyzed. For one-bit feedback, a tight bound of the achievable rate is obtained. It is shown that the achievable rate nearly capture the order of the double-logarithmical of the number of users in full CSI systems. Numerical results are also presented. The achievable sum rate is close to the full CSI capacity via limited feedback as the number of users is large enough.

Original languageEnglish
Title of host publicationProceedings - 2009 IEEE International Conference on Communications, ICC 2009
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE International Conference on Communications, ICC 2009 - Dresden, Germany
Duration: 14 Jun 200918 Jun 2009

Other

Other2009 IEEE International Conference on Communications, ICC 2009
CountryGermany
CityDresden
Period14/6/0918/6/09

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Keywords

  • Fair scheduling
  • Limited feedback
  • Multiuser
  • Wireless

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Zhi, C., Fan, P., & Letaief, K. (2009). On the multi-rate division with limited feedback for one source multiple destinations wireless transmission systems. In Proceedings - 2009 IEEE International Conference on Communications, ICC 2009 [5199258] https://doi.org/10.1109/ICC.2009.5199258