arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1707.04859cs.ITcs.CRmath.IT
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由几乎差集构造最优和近优拟互补序列集

Constructions of Optimal and Near-Optimal Quasi-Complementary Sequence Sets from an Almost Difference Set

Yu Li, Tongjiang Yan, Chuan Lv

摘要:

与理想互补序列集相比,准互补序列集(QCSS)可以支持更多的用户工作在多载波CDMA通信中。本文利用最优四元序列集和几乎差集构造了一个近似最优的周期QCSS。随着几乎差集中参数值的变化,准最优QCSS可以变为渐近最优,CDMA系统子载波信道支持的用户数呈指数增长。

英文摘要:

Compared with the perfect complementary sequence sets, quasi-complementary sequence sets (QCSSs) can support more users to work in multicarrier CDMA communications. A near-optimal periodic QCSS is constructed in this paper by using an optimal quaternary sequence set and an almost difference set. With the change of the values of parameters in the almost difference set, the near-optimal QCSS can become asymptotically optimal and the number of users supported by the subcarrier channels in CDMA system has an exponential growth.

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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