Title :
A novel construction method of zero-correlation zone sequences based on complete complementary codes
Author :
Han, Chenggao ; Hashimoto, Takeshi ; Suehiro, Naoki
Author_Institution :
Dept. of Electron. Eng., Univ. of Electro-Commun., Tokyo
Abstract :
In an approximately synchronous CDMA (AS- CDMA) system, zero correlation zone (ZCZ) sequences are known as the sequences to eliminate co-channel and multi- path interferences. Therefore, numerous constructions of zero correlation zone (ZCZ) sequences have been introduced e.g. based on perfect sequences, m-sequences and complete complementary codes etc.. However, the previous construction method which based on complete complementary code is lacking for merit figure. In this paper, a new construction method of ZCZ sequences based on complete complementary codes is proposed. By proposed method, the ZCZ sequences with greater than 1/2 merit figure are constructable.
Keywords :
Golay codes; code division multiple access; Golay sequences; approximately synchronous CDMA; complete complementary codes; zero-correlation zone sequences; Autocorrelation; Code division multiplexing; Control systems; Interchannel interference; Interference elimination; Systems engineering and theory; Transmitters; Golay’s sequence; N-shift cross orthogonal sequence; complementary sequences; complete complementary code; zero correlation zone;
Conference_Titel :
Information Theory, 2008. ISIT 2008. IEEE International Symposium on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-2256-2
Electronic_ISBN :
978-1-4244-2257-9
DOI :
10.1109/ISIT.2008.4595325
