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Performance analysis of OFDM-IDMA systems with peak-power limitation

Conference Paper


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Abstract


  • This paper is concerned with orthogonal frequency-division multiplexing interleave-division multiple-access (OFDM-IDMA) systems over frequency-selective fading channels. Deliberate clipping is applied to reduce the peak-to-average power ratio (PAPR) of each user's transmitted signal. An iterative multiuser detection (MUD) technique is developed to recover the performance loss due to clipping. A semi-analytical signal-to- noise ratio (SNR) evolution technique is proposed, which can provide quick and accurate prediction of the iterative MUD performance. Numerical results show that the performance of OFDM-IDMA is not sensitive to the frequency selectivity of channels, and OFDM-IDMA is more power-efficient than other alternative multi-carrier transmission techniques. © 2008 IEEE.

Publication Date


  • 2008

Citation


  • J. Tong, Q. Guo & L. Ping, "Performance analysis of OFDM-IDMA systems with peak-power limitation," in IEEE International Symposium on Spread Spectrum Techniques and Applications, 2008, pp. 555-559.

Scopus Eid


  • 2-s2.0-57849152957

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2029&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1020

Has Global Citation Frequency


Start Page


  • 555

End Page


  • 559

Place Of Publication


  • United States

Abstract


  • This paper is concerned with orthogonal frequency-division multiplexing interleave-division multiple-access (OFDM-IDMA) systems over frequency-selective fading channels. Deliberate clipping is applied to reduce the peak-to-average power ratio (PAPR) of each user's transmitted signal. An iterative multiuser detection (MUD) technique is developed to recover the performance loss due to clipping. A semi-analytical signal-to- noise ratio (SNR) evolution technique is proposed, which can provide quick and accurate prediction of the iterative MUD performance. Numerical results show that the performance of OFDM-IDMA is not sensitive to the frequency selectivity of channels, and OFDM-IDMA is more power-efficient than other alternative multi-carrier transmission techniques. © 2008 IEEE.

Publication Date


  • 2008

Citation


  • J. Tong, Q. Guo & L. Ping, "Performance analysis of OFDM-IDMA systems with peak-power limitation," in IEEE International Symposium on Spread Spectrum Techniques and Applications, 2008, pp. 555-559.

Scopus Eid


  • 2-s2.0-57849152957

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2029&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1020

Has Global Citation Frequency


Start Page


  • 555

End Page


  • 559

Place Of Publication


  • United States