Title :
A General Construction of OVSF Codes With Zero Correlation Zone
Author :
Feng, Lifang ; Fan, Pingzhi ; Tang, Xiaohu
Author_Institution :
Southwest Jiaotong Univ., Chengdu
Abstract :
In this letter, a general construction of orthogonal variable spreading factor (OVSF) codes with zero correlation zone (ZCZ) property is presented based on orthogonal sequence sets and -complementary sets. It is shown that the proposed general construction includes the conventional binary and ternary OVSF codes as special cases and can accommodate more flexible rate assignment in direct sequence code division multiple access (DS-CDMA) systems.
Keywords :
binary codes; code division multiple access; orthogonal codes; sequences; spread spectrum communication; DS-CDMA; OVSF Codes; Z-complementary sets; Zero Correlation Zone; direct sequence code division multiple access systems; orthogonal sequence sets; orthogonal variable spreading factor codes; ${rm Z}$-complementary; Orthogonal sequence; orthogonal variable spreading factor (OVSF) code; zero correlation zone;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2007.906643
