DocumentCode
1129984
Title
Cognitive Radio Transmission Based on Direct Sequence MC-CDMA
Author
Attar, Alireza ; Nakhai, Mohammad Reza ; Aghvami, A. Hamid
Author_Institution
King´´s Coll. London, London
Volume
7
Issue
4
fYear
2008
fDate
4/1/2008 12:00:00 AM
Firstpage
1157
Lastpage
1162
Abstract
In this paper, we propose a cognitive cellular system based on DS MC-CDMA to coexist with a number of narrow-band legacy systems in the same frequency range. If the bandwidth and the frequency location of each narrow-band system are known to this cognitive MC-CDMA, it is possible to mitigate their interfering effect in the cognitive receivers by adaptive transmission. We will develop an algorithm for calculating the adaptive transmission parameters and show that it combats interference in the channel effectively.
Keywords
code division multiple access; cognitive radio; interference suppression; radiofrequency interference; spread spectrum communication; adaptive transmission; cognitive radio transmission; cognitive receiver; direct sequence MC-CDMA; interfering effect; narrow-band legacy system; Bandwidth; Chromium; Cognitive radio; Frequency; Interference; Multicarrier code division multiple access; Narrowband; OFDM; Transceivers; Transmitters;
fLanguage
English
Journal_Title
Wireless Communications, IEEE Transactions on
Publisher
ieee
ISSN
1536-1276
Type
jour
DOI
10.1109/TWC.2007.060907
Filename
4489739
Link To Document