Outage capacities and optimal power allocation for fading multiple-access channels

Lifang Li, Andrea Goldsmith

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

2 Scopus citations

Abstract

We derive the outage capacity regions of an M-user fading multiple-access channel under the assumption that both the transmitters and the receiver have perfect channel side information. We show that the outage capacity region is implicitly obtained by deriving the outage probability region for a given rate vector. Given the average power constraint and the required rate of each user, we find a successive decoding strategy and a power allocation policy that bound the outage probability region. Also discussed is a simpler minimum common outage probability problem under the assumption that the multiple-access channel is either not used at all when fading is severe or is used simultaneously by all users. Iterative algorithms are proposed for obtaining the optimal decoding order and power allocation in each fading state under the given power constraint of each user.

Original languageEnglish (US)
Title of host publication1999 IEEE Wireless Communications and Networking Conference, WCNC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages485-489
Number of pages5
ISBN (Electronic)0780356683
DOIs
StatePublished - 1999
Externally publishedYes
Event1st IEEE Annual Wireless Communications and Networking Conference, WCNC 1999 - New Orleans, United States
Duration: Sep 21 1999Sep 24 1999

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
Volume1
ISSN (Print)1525-3511

Other

Other1st IEEE Annual Wireless Communications and Networking Conference, WCNC 1999
CountryUnited States
CityNew Orleans
Period9/21/999/24/99

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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