Rate regions and optimal power allocation for TD fading broadcast channels without CSIT

Yifan Liang, Andrea Goldsmith

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

3 Scopus citations

Abstract

We study the achievable rate region and optimal power allocation for broadcast channels (BC) under orthogonal access schemes. The channel follows a block fading model with channel side information (CSI) perfectly known at the receiver but not at the transmitter. The region boundary is determined by finding the optimal power allocation associated with all boundary points. For the two-user case, the optimal strategy balances power between the users via a Tangent Match algorithm. In a Rayleigh fading BC with more than two users, the optimal power allocationis obtained by applying the tangent match algorithm to the pair of users with the largest and smallest average channel gain, respectively.

Original languageEnglish (US)
Title of host publication43rd Annual Allerton Conference on Communication, Control and Computing 2005
PublisherUniversity of Illinois at Urbana-Champaign, Coordinated Science Laboratory and Department of Computer and Electrical Engineering
Pages1136-1145
Number of pages10
ISBN (Electronic)9781604234916
StatePublished - 2005
Externally publishedYes
Event43rd Annual Allerton Conference on Communication, Control and Computing 2005 - Monticello, United States
Duration: Sep 28 2005Sep 30 2005

Publication series

Name43rd Annual Allerton Conference on Communication, Control and Computing 2005
Volume3

Other

Other43rd Annual Allerton Conference on Communication, Control and Computing 2005
CountryUnited States
CityMonticello
Period9/28/059/30/05

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications

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