A generic construction of low correlation zone sequences based on interleaved technique  

作　　者：KANG Li TANG XiaoHu 

机构地区：[1]School of Economic Information Engineering, Southwestern University of Finance and Economics [2]Information Security and National Computing Grid Laboratory, Southwest Jiaotong University

出　　处：《Science China Mathematics》2013年第7期1441-1448,共8页中国科学：数学（英文版）

基　　金：supported by the Key grant Project of Chinese Ministry of Education(Grant No.311031);the Innovative Research Team of Sichuan Province(Grant No.2011JTD0007);National Natural Science Foundation of China(Grant No.91218301);the Ministry of Education of Humanities and Social Science Foundation of China(Grant No.11XJCZH002)

摘　　要：Low correlation zone (LCZ) sequences are useful in quasi-synchronous code-division multiple access (QS-CDMA) communication systems. In this paper, a generic construction of LCZ sequences based on inter-leaved technique is investigated. Firstly, the shift sequence is shown to correspond to two-tuple balanced d-form function essentially, which results in new shift sequence. Secondly, an optimal design of p2-ary sequences over the integer residue class ring Zp2 is proposed, which improves the previous construction when p is an odd prime.Low correlation zone （LCZ） sequences are useful in quasi-synchronous code-division multiple access （QS-CDMA） communication systems. In this paper, a generic construction of LCZ sequences based on interleaved technique is investigated. Firstly, the shift sequence is shown to correspond to two-tuple balanced d-form function essentially, which results in new shift sequence. Secondly, an optimal design of p2-ary sequences over the integer residue class ring Zp2 is proposed, which improves the previous construction when p is an odd prime.

关 键 词：interleaved sequences LCZ sequences shift sequence punctured Hadamard matrices column permutation 

分 类 号：TN929.533[电子电信—通信与信息系统]