Adaptive MCS selection in ofdm systems based on channel frequency coherence

Muayad S. Al-Janabi, Charalampos C. Tsimenidis, Bayan S. Sharif, Stéphane Y.Le Goff

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

8 Scopus citations

Abstract

This paper presents a joint adaptive modulation and coding (AMC) scheme, which exploits the coherence bandwidth of the wireless channel to divide the transmitted frame into independent sub-channels that correspond to the channel coherence bandwidth. This strategy is implemented for orthogonal frequency division multiplexing (OFDM) systems with channel state information (CSI) feedback. Low density parity check (LDPC) codes are utilized for encoding by employing signalto noise ratio (SNR) dependent coding rates, as well as distinct modulation schemes to achieve adaptivity to time-varying channel conditions. The performance of the proposed system was tested on Rayleigh fading channels that exhibit frequency coherent bands. Numerical results obtained via simulation demonstrate that the throughput of the proposed system and bit error rate (BER) performance are better than previously suggested approaches.

Original languageBritish English
Title of host publicationProceedings of the 2009 5th Advanced International Conference on Telecommunications, AICT 2009
Pages177-182
Number of pages6
DOIs
StatePublished - 2009
Event2009 5th Advanced International Conference on Telecommunications, AICT 2009 - Venice, Mestre, Italy
Duration: 24 May 200928 May 2009

Publication series

NameProceedings of the 2009 5th Advanced International Conference on Telecommunications, AICT 2009

Conference

Conference2009 5th Advanced International Conference on Telecommunications, AICT 2009
Country/TerritoryItaly
CityVenice, Mestre
Period24/05/0928/05/09

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