Performance analysis of iterative groupwise equal-delay interference cancellation(IGEIC) for multiuser detection of coherent W-CDMA system 


Vol. 27,  No. 3, pp. 179-187, Mar.  2002


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  Abstract

This paper proposes and analyzes the iterative groupwise equal-delay interference cancellation(IGEIC) algorithm for coherent detection of an asynchronous wideband DS-CDMA system in a single cell over multipath fading channels. The IGEIC algorithm divide users in a system into several groups, and subtract out interference signal from the received signal as many as the number of users within a user group, iteratively. The IGEIC algorithm is also classified into the iterative groupwise equal-delay serial interference cancellation(IGESIC) algorithm and the iterative groupwise equal-delay parallel interference cancellation(IGEPlC) algorithm. In the case of perfect correlation for spreading codes, it shows that the performance of IGESICand IGEPIC algorithm is the same after interference cancellation of as many as the number of users within a user group, but the performance of IGEPIC algorithm is superior to the IGESIC algorithm just before final cancellation within a user group. The results show that the performance of the two proposed algorithms are also superior to the SIC algorithm by 3dB.

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  Cite this article

[IEEE Style]

J. Koo and H. Choi, "Performance analysis of iterative groupwise equal-delay interference cancellation(IGEIC) for multiuser detection of coherent W-CDMA system," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 3, pp. 179-187, 2002. DOI: .

[ACM Style]

Je-gil Koo and Hyung-jin Choi. 2002. Performance analysis of iterative groupwise equal-delay interference cancellation(IGEIC) for multiuser detection of coherent W-CDMA system. The Journal of Korean Institute of Communications and Information Sciences, 27, 3, (2002), 179-187. DOI: .

[KICS Style]

Je-gil Koo and Hyung-jin Choi, "Performance analysis of iterative groupwise equal-delay interference cancellation(IGEIC) for multiuser detection of coherent W-CDMA system," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 3, pp. 179-187, 3. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880