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.
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)
