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arXiv 1003.2681cs.ITmath.IT
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构造最优完全互补码的系统框架

A Systematic Framework for the Construction of Optimal Complete Complementary Codes

Chenggao Han, Naoki Suehiro, Takeshi Hashimoto

摘要:

完全互补码是Suehiro和Hatori提出的具有理想相关和的序列族。大量的文献表明,它的应用直接扩频码分多址(DS-CDMA)系统的信道间干扰(ICI)的自由通信,提高了频谱效率。本文提出了一种基于$N$ -移位交叉正交序列族($N$ -CO-SF)构造CCC的系统框架。我们证明了$N$ -CO-SF和CCC的大小的理论界,并给出了一组四个算法的生成和扩展。该算法是最优的,在这个意义上,所得到的序列族的大小达到理论界,与算法,我们可以构造一个最优的CCC组成的序列的长度不仅是几乎任意的,但甚至是可变的序列族之间。我们还讨论了所提出的算法的基础上的家庭规模,字母表的大小,和可构造的CCC的长度。

英文摘要:

The complete complementary code (CCC) is a sequence family with ideal correlation sums which was proposed by Suehiro and Hatori. Numerous literatures show its applications to direct-spread code-division multiple access (DS-CDMA) systems for inter-channel interference (ICI)-free communication with improved spectral efficiency. In this paper, we propose a systematic framework for the construction of CCCs based on $N$-shift cross-orthogonal sequence families ($N$-CO-SFs). We show theoretical bounds on the size of $N$-CO-SFs and CCCs, and give a set of four algorithms for their generation and extension. The algorithms are optimal in the sense that the size of resulted sequence families achieves theoretical bounds and, with the algorithms, we can construct an optimal CCC consisting of sequences whose lengths are not only almost arbitrary but even variable between sequence families. We also discuss the family size, alphabet size, and lengths of constructible CCCs based on the proposed algorithms.

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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