Rate-Maximizing Power Allocation in OFDM Based on Partial Channel Knowledge

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

4 Scopus citations

Abstract

Power loading algorithms improve the data rates of OFDM systems. However, they require the transmitter to have perfect channel state information, which is impossible in most wireless systems. We investigate the effects of imperfect (and thus partial) channel feedback on the achievable rates of OFDM systems. Two cases are studied: i) ergodic channels, where average rate is the figure of merit; and ii) quasi-static channels, where the outage rate is relevant. Power loading algorithms and the effects of channel multipath are investigated analytically and with simulations.

Original languageEnglish (US)
Title of host publicationGLOBECOM - IEEE Global Telecommunications Conference
Pages863-867
Number of pages5
Volume2
StatePublished - Dec 1 2003
EventIEEE Global Telecommunications Conference GLOBECOM'03 - San Francisco, CA, United States
Duration: Dec 1 2003Dec 5 2003

Other

OtherIEEE Global Telecommunications Conference GLOBECOM'03
CountryUnited States
CitySan Francisco, CA
Period12/1/0312/5/03

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