电子学报2018，Vol.46Issue(3)：755-760,6.DOI:10.3969/j.issn.0372-2112.2018.03.034
最佳及几乎最佳高斯整数ZCZ序列集的构造
Construction of Optimal and Almost Optimal Gaussian Integer Sequence Sets with Zero Correlation Zone
摘要
Abstract
In quasi-synchronous code-division multiple-access (QS-CDMA) system, Gaussian integer sequences with zero correlation zone (ZCZ) used as address sequences can not only suppress the multiple access interference (MAI) and the multipath interference (MPI), but also possess higher spectrum efficiency and transmission bit rate. However, the construction of the sequences is limited at present. In order to solve the problem, this paper presents a method of constructing Gaussian integer sequence sets with ZCZ and perfect Gaussian integer sequences by filtering operation. Based on perfect sequences and periodic sequence sets with ZCZ, the optimal or almost optimal Gaussian integer ZCZ sequence sets can be obtained. Meanwhile, based on perfect sequences, a class of perfect Gaussian integer sequences with odd or even period is constructed. The achieved results of this paper provide more address selection space for high-speed QS-CDMA system.关键词
高斯整数序列/零相关区/过滤操作/完美序列/正交幅度调制(QAM)序列Key words
Gaussian integer sequence/zero correlation zone (ZCZ)/filtering operation/perfect sequence/quadrature amplitude modulation (QAM) sequence分类
信息技术与安全科学引用本文复制引用
刘凯,陈盼盼..最佳及几乎最佳高斯整数ZCZ序列集的构造[J].电子学报,2018,46(3):755-760,6.基金项目
国家自然科学基金青年基金(No.61201263 （）
No.61601399) （）
燕山大学基础研究专项(No.16LGA009) （No.16LGA009）
