Phase-shift-free M-phase spreading sequences of Markov chains

被引：3

作者：

Fujisaki, Hiroshi ^{[1
]}

Sugirnori, Hayato ^{[1
]}

机构：

[1] Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2008年 / 55卷 / 03期

关键词：

bit-error probabilities; central limit theorem (CLT); M-phase spreading sequences; Markov Chains; multiple-access interference (MAI); phase-shift-free spreading sequences; spread-spectrum multiple access (SSMA);

D O I：

10.1109/TCSI.2008.916455

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We consider the optimum spreading sequences of Markov chains in terms of the mean value of the limit of variance of the normalized multiple-access interference for asynchronous spread-spectrum multiple access communication systems. We first define a novel class of spreading sequences, namely the phase-shift-free M(>= 3)-phase spreading sequences. Then we theoretically and experimentally show that the optimum phase-shift-free M-phase spreading sequences of Markov chains are superior to the optimum binary spreading sequences of Markov chains in terms of the bit-error probabilities based on the central limit theorem for periods N > 5.

引用

页码：876 / 882

页数：7

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