Welch bound analysis on generic code division multiple access codes with interference free windows

Author

Li, Xiangming ; Chen, Hsiao-Hwa ; Qian, Yi ; Rong, Bo ; Soleymani, Mohammad Reza

Author_Institution

Sch. of Inf. & Electron. Eng., Beijing Inst. of Technol., Beijing

Volume

8

Issue

4

fYear

2009

fDate

4/1/2009 12:00:00 AM

Firstpage

1603

Lastpage

1607

Abstract

Code-division multiple access (CDMA) technology has been applied to many wireless communication systems. CDMA system suffers from both multiple access interference (MAI) and inter-symbol interference (ISI) over a multipath channel. To suppress MAI and ISI, this paper proposes the spreading codes with interference free windows. In particular, we will develop several upper bounds on the efficiency of generalized spreading codes (for both unitary and complementary codes) in terms of the width of their interference free windows.

Keywords

channel coding; code division multiple access; intersymbol interference; multipath channels; CDMA; Welch bound analysis; generalized spreading code; generic code division multiple access; inter symbol interference; interference free window; multipath channel; multiple access interference; wireless communication system; Autocorrelation; Delay systems; Interference constraints; Interference suppression; Intersymbol interference; Multiaccess communication; Multipath channels; Multiple access interference; Upper bound; Wireless communication; CDMA; Multiple access; Welch bound; complementary sequences; interference free window;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2009.070470

Filename

4907428