CDMA中伪随机序列的最大周期相关

2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099) Pub Date : 2000-05-29 DOI:10.1109/MELCON.2000.880455

M. Stular, S. Tomažič

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引用次数: 12

摘要

本文比较了CDMA码相关的Welch下界、修正Welch下界、Sarwate下界和Sidelnikov下界。证明了改进的Welch界是已知的最好的一般界，而对于符号为单位根的码，Sidelnikov界更紧。对于代码集中大量的代码，这些边界似乎不是最优的，并且仍有进一步改进的余地。

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Maximum periodic correlation of pseudo-random sequences in CDMA

The article presents the comparison of the Welch, modified Welch, Sarwate and Sidelnikov lower bounds on the correlation of CDMA codes. It is shown that the modified Welch bound is the best general bound known, while for codes whose symbols are roots of unity, the Sidelnikov bound is tighter. It appears likely that these bounds are nonoptimal for larger number of codes in a code set, and that there is still place for further improvements.

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来源期刊

2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)

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