Performance Improvement Techniques for an OFDM-CDMA System without Guard Interval 


Vol. 31,  No. 5, pp. 501-508, May  2006


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  Abstract

Orthogonal frequency division multiplexing-code division multiplexing access(OFDM-CDMA) systems without guard interval can enhance the bandwidth performance more efficiently than the systems with guard interval. In this paper, a new technique for an OFDM-CDMA system without guard interval, which can eliminate inter-symbol interference(ISI) and inter-channel interference(ICI), is presented. The proposed algorithm is a new demodulation technique, based on the Pseudo-Decorrelator, and it is named PD algorithm. Simulation results show that the PD algorithm can combat ISI and ICI efficiently for an OFDM-CDMA system without guard interval. The BER performance of the PD algorithm is much better than that of a conventional OFDM-CDMA system without guard interval.

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  Cite this article

[IEEE Style]

H. Lee and J. Park, "Performance Improvement Techniques for an OFDM-CDMA System without Guard Interval," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 5, pp. 501-508, 2006. DOI: .

[ACM Style]

Hyun-Woo Lee and Joong-Hoo Park. 2006. Performance Improvement Techniques for an OFDM-CDMA System without Guard Interval. The Journal of Korean Institute of Communications and Information Sciences, 31, 5, (2006), 501-508. DOI: .

[KICS Style]

Hyun-Woo Lee and Joong-Hoo Park, "Performance Improvement Techniques for an OFDM-CDMA System without Guard Interval," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 5, pp. 501-508, 5. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880