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arXiv cs/0610012cs.ITmath.IT
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低相关序列集交错构造中的移位序列

On Shift Sequences for Interleaved Construction of Sequence Sets with Low Correlation

N Rajesh Pillai, Yogesh Kumar

摘要:

构造具有低相关特性的信号集是CDMA系统设计者感兴趣的问题。构造这样的集合的优选方式之一是使用具有2级自相关的两个序列a和b以及移位序列e的交织构造。移位序列必须满足某些条件,以使所得信号集具有低相关特性。本文指出了文献中所报道的条件过于严格,并给出了一个导致更多移位序列的版本。本文还提出并解决了一个公开的问题,即存在一个移位序列来获得一个最大相关值以v+2为界的交织集。

英文摘要:

Construction of signal sets with low correlation property is of interest to designers of CDMA systems. One of the preferred ways of constructing such sets is the interleaved construction which uses two sequences a and b with 2-level autocorrelation and a shift sequence e. The shift sequence has to satisfy certain conditions for the resulting signal set to have low correlation properties. This article shows that the conditions reported in literature are too strong and gives a version which results in more number of shift sequences. An open problem on the existence of shift sequences for attaining an interleaved set with maximum correlation value bounded by v+2 is also taken up and solved.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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