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A new family of quadriphase sequences for CDMA

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1 Author(s)
Novosad, T. ; Inst. of Radio Eng. & Electron., Czech Acad. of Sci., Prague, Czech Republic

The construction of a family of quadriphase sequences that are suitable for code-division multiple-access spread spectrum (CMA/SS) communication is described. For a given parameter n, where n=2(mod 4), the period of the sequence is 2n-1 chips. The set of sequences asymptotically achieves Welch's lower bound on simultaneous cross-correlation and autocorrelation magnitudes, all of them being bounded by a value 2n/2+1. The cardinality of this family of sequencies is 2n/2

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Information Theory, IEEE Transactions on  (Volume:39 ,  Issue: 3 )