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New algorithms for constructing quasi-optimal subfamilies of GMW sequences for the applications in finite CDMA systems

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3 Author(s)
Chen, X.H. ; Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore ; Lang, T. ; Oksman, J.

GMW sequence possesses desirable 2-valued auto-correlation functions however with less well controlled cross-correlation functions. This paper studies several algorithms for constructing those quasi-optimal sub-families in terms of minimized bit error rate under co-channel interference. Performance of resultant sub-families is very sensitive to the algorithms and sub-family sizes. A new criterion based on combinational (even plus odd) maximum cross-correlation is introduced for code selection and the resultant highest-peak-deleting and most-peak-deleting algorithms are effective

Published in:

Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on  (Volume:2 )

Date of Conference:

22-25 Sep 1996

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