DocumentCode
1377207
Title
Band-limited DS-CDMA using exponentially weighted despreading sequence
Author
Huang, Y. ; Ng, Tung-Sang
Author_Institution
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
Volume
34
Issue
6
fYear
1998
fDate
3/19/1998 12:00:00 AM
Firstpage
515
Lastpage
517
Abstract
The signal-to-interference ratio (SIR) performance of a band-limited DS-CDMA system using an exponentially-weighted despreading sequence (EWDS) in the receiver is addressed. It is shown that tuning a parameter of the EWDS helps to flatten the in-band spectrum of the received coloured signal, leading to a better performance when the transmission bandwidth is limited. With the constraint of the system transmission bandwidth equal to and twice the chip rate, numerical results show that the SIR of the proposed system can be increased up to 28 and 94%, respectively, when compared with a conventional receiver using a rectangular despreading sequence
Keywords
code division multiple access; interference (signal); sequences; spread spectrum communication; SIR performance; band-limited DS-CDMA; exponentially weighted despreading sequence; receiver; signal-to-interference ratio performance; transmission bandwidth;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19980403
Filename
674256
Link To Document