Multiple-Symbol Differential Detection Scheme of Differentially Encoded MultiPhase Clipped MultiCode CDMA System 


Vol. 28,  No. 10, pp. 807-815, Oct.  2003


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  Abstract

MultiCode-CDMA (MC CDMA) system of chiplevel MPSK incorporating with clipper (MP-CDMA)[1] shows constant envelope signal which can mitigate the performance degradation due to nonlinear transmit amplifier. In this paper. modulation is modified to carry out differential encoded MPSK rather than MPSK. The modified system is called DMP CDMA. DMP-CDMA using differential detection has advantages on receiver complexity and pilot overhead. However. it is inferior to coherent detection by about 4.0dB due to inherent power inefficiency of noncoherent detection and the error propagation. Multiple symbol differential detection is employed in order to improve DMP-CDMA using differential detection. As the result, the performance of DMP-CDMA system is improved about 3.6dB compared to differential detection.

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  Cite this article

[IEEE Style]

B. Yi, C. Ahn, D. Kim, J. W. Cho, "Multiple-Symbol Differential Detection Scheme of Differentially Encoded MultiPhase Clipped MultiCode CDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 10, pp. 807-815, 2003. DOI: .

[ACM Style]

Byoung-Ha Yi, Cheol-Yong Ahn, Dong-Ku Kim, and Jin Woong Cho. 2003. Multiple-Symbol Differential Detection Scheme of Differentially Encoded MultiPhase Clipped MultiCode CDMA System. The Journal of Korean Institute of Communications and Information Sciences, 28, 10, (2003), 807-815. DOI: .

[KICS Style]

Byoung-Ha Yi, Cheol-Yong Ahn, Dong-Ku Kim, Jin Woong Cho, "Multiple-Symbol Differential Detection Scheme of Differentially Encoded MultiPhase Clipped MultiCode CDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 10, pp. 807-815, 10. 2003.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880