Interleaved OFDMA systems with adaptive common carrier frequency offset correction

Dah Chung Chang, Yen Heng Lai, Yung Li Lai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An interleaved OFDMA system with a new carrier frequency offset (CFO) correction scheme is studied. The previous proposals for OFDMA compensating for the CFO effect at the OFDMA receiver can remain multiple access interference (MAI). Although some MAI cancellation schemes have been proposed to mitigate the MAI effect, we found that the minimum mean square error (MMSE) performance of demodulated signals is related to a common CFO (CCFO) value which should be corrected before the DFT. In this paper we explore an adaptive CCFO correction scheme and evaluate the performance of the interleaved OFDMA receiver utilizing the new CCFO correction scheme to achieve the optimal MSE performance. Simulation results show that the previous proposals for OFDMA in conjunction with the new CCFO correction algorithm can have better performance than their original proposals in interleaved OFDMA systems.

Original languageEnglish
Title of host publication2009 International Conference on Communications, Circuits and Systems, ICCCAS 2009
Pages43-47
Number of pages5
StatePublished - 2009
Event2009 International Conference on Communications, Circuits and Systems, ICCCAS 2009 - Milpitas, CA, United States
Duration: 23 Jul 200925 Jul 2009

Publication series

Name2009 International Conference on Communications, Circuits and Systems, ICCCAS 2009

Conference

Conference2009 International Conference on Communications, Circuits and Systems, ICCCAS 2009
Country/TerritoryUnited States
CityMilpitas, CA
Period23/07/0925/07/09

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