Designs of Inter-Group Complementary Sequence Set from Interleaving Z-Periodic Complementary Sequences

Longye WANG  Xiaoli ZENG  Hong WEN  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E99-A   No.5   pp.987-993
Publication Date: 2016/05/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E99.A.987
Type of Manuscript: LETTER
Category: Coding Theory
Keyword: 
inter-group complementary sequences,  Z-periodic complementary sequences,  periodic perfect complementary sequences,  zero correlation zone,  interleaving technique,  

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Summary: 
Novel constructions of inter-group complementary (IGC) sequences are proposed based on Z-periodic complementary (ZPC) sequences and uncorrelated sequence set by taking advantages of interleaved operation. The presented methods can get IGC sequences from interleaving ZPC sequence set. The proposed methods not only can get polyphase IGC sequence set, but also can obtain binary and ternary IGC sequence set. In particular, with the aid of uncorrelated sequence, the number of available groups of IGC sequences from interleaving ZPC sequence set can be chosen with flexibility compared to the existed IGC sequences. The IGC sequences based code division multiple access (CDMA) systems may perform better on bit error rates than conventional sequences based interference-limited CDMA systems. Moreover, the novel IGC sequences may work well in both synchronous and asynchronous operational modes.