Optimum ergodic power allocation for multiuser OFDM with arbitrary signal constellations

Angel Lozano, Antonia M. Tulino, Sergio Verdú

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

2 Scopus citations

Abstract

This paper formulates the power allocation policy that maximizes the region of ergodic mutual informations achievable in multiuser downlink OFDM channels known only statistically by the base station. Arbitrary partitioning of the available tones among users and arbitrary modulation formats, possibly different for every user, are considered. The derivation relies on the nexus between the mutual information of Gaussian channels and the minimum mean-square error incurred in the nonlinear estimation of the transmit constellation points given their noisy receive observations.

Original languageEnglish (US)
Title of host publicationIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
DOIs
StatePublished - Dec 1 2006
EventIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference - San Francisco, CA, United States
Duration: Nov 27 2006Dec 1 2006

Other

OtherIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
CountryUnited States
CitySan Francisco, CA
Period11/27/0612/1/06

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Lozano, A., Tulino, A. M., & Verdú, S. (2006). Optimum ergodic power allocation for multiuser OFDM with arbitrary signal constellations. In IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference [4150667] https://doi.org/10.1109/GLOCOM.2006.37