A New Scheme for Constructing High Code Efficiency LS ZCW Multiple Access Codes

Author

Yu, Zheng ; Yang, Xing ; Li, Daoben

Author_Institution

Sch. of Inf. Eng., Beijing Univ. of Posts & Telecommun.

fYear

2006

fDate

25-27 Oct. 2006

Firstpage

1

Lastpage

4

Abstract

New zero correlation window (ZCW) LS (loosely synchronous) codes derived from basic LS codes are constructed. A general scheme for generating these codes is also discussed. It is showed mathematically that these new codes have a uniform ZCW for both aperiodic auto-correlation function (ACF) and cross-correlation function (CCF) within one group. Moreover, the minimum ZCW among different groups is the same as that of basic LS codes. The number of these new codes is more than the basic LS codes, and code efficiency can be greatly enhanced. Finally, the computer simulations verify the validity of new LS codes.

Keywords

codes; multi-access systems; aperiodic autocorrelation function; computer simulations; cross-correlation function; high code efficiency; loosely synchronous codes; multiple access codes; zero correlation window; Autocorrelation; Binary trees; Computer simulation; Concatenated codes; Intersymbol interference; Silicon compounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2006. ChinaCom '06. First International Conference on

Conference_Location

Beijing

Print_ISBN

1-4244-0463-0

Electronic_ISBN

1-4244-0463-0

Type

conf

DOI

10.1109/CHINACOM.2006.344710

Filename

4149713