DocumentCode
855863
Title
On the achievable rate region of gaussian cognitive multiple access channel
Author
Cheng, Peng ; Yu, Guanding ; Zhang, Zhaoyang ; Chen, Hsiao-Hwa ; Qiu, Peiliang
Author_Institution
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou
Volume
11
Issue
5
fYear
2007
fDate
5/1/2007 12:00:00 AM
Firstpage
384
Lastpage
386
Abstract
We consider the communication scenario where multiple cognitive users wish to communicate to the same receiver through AWGN channels, in the presence of primary transmission. The cognitive users are assumed to have the side information about the primary transmission. The achievable rate region of cognitive users is formulated under the constraint that the rate of primary transmission is not changed as if no cognitive users existed. Moreover, the maximum achievable sum-rate point of the rate region is characterized
Keywords
AWGN channels; cognitive radio; multi-access systems; radio receivers; AWGN channel; additive white Gaussian noise; cognitive communication scenario; multiple access channel; receiver; AWGN channels; Chromium; Cognitive radio; Gaussian noise; Information theory; Interference constraints; Lagrangian functions; Land mobile radio cellular systems; Licenses; Wireless LAN;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2007.070084
Filename
4202081
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