Generalized Pairwise Z-Complementary Codes

Author

Feng, Lifang ; Fan, Pingzhi ; Tang, Xiaohu ; Loo, Kok-Keong

Author_Institution

Provincial Key Lab. of Inf. Coding & Transm., Southwest Jiaotong Univ., Chengdu

Volume

15

fYear

2008

fDate

6/30/1905 12:00:00 AM

Firstpage

377

Lastpage

380

Abstract

An approach to generate generalized pairwise Z-complementary (GPZ) codes, which works in pairs in order to offer a zero correlation zone (ZCZ) in the vicinity of zero phase shift and fit extremely well in power efficient quadrature carrier modems, is introduced in this letter. Each GPZ code has MK sequences, each of length 4NK, where M is the number of Z-complementary mates, K is a factor to perform Walsh-Hadamard expansions, and N is the sequence length of the Z-complementary code. The proposed GPZ codes include the generalized pairwise complementary (GPC) codes as special cases.

Keywords

Hadamard codes; Walsh functions; correlation methods; orthogonal codes; sequences; MK sequence; Walsh-Hadamard expansion; generalized pairwise Z-complementary codes; orthogonal sequence set; power efficient quadrature carrier modem; zero correlation zone; zero phase shift; Autocorrelation; Design engineering; Interference; Mobile communication; Modems; Multiaccess communication; Phase shift keying; Power generation; Radar applications; Research and development; Generalized pairwise complementary codes; Z-complementary codes; zero correlation zone;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2008.919997

Filename

4479582