DocumentCode
3608631
Title
Precoding for secrecy rate maximisation in cognitive MIMO wiretap channels
Author
Bing Fang ; Zuping Qian ; Wei Zhong ; Wei Shao
Author_Institution
Coll. of Commun. Eng., PLAUST, Nanjing, China
Volume
51
Issue
21
fYear
2015
Firstpage
1715
Lastpage
1717
Abstract
The problem of physical layer security in a cognitive MIMO wiretap channel is studied. The problem is formulated as a secrecy rate maximisation (SRM) problem, and solved by a successive convex approximation (SCA) method. With the SCA method, the non-convex part of the SRM problem is approximated by its first-order Taylor expansion. Then, relying on solving a series of convexified optimisation problems, an iterative precoding algorithm is developed.
Keywords
MIMO communication; approximation theory; cognitive radio; iterative methods; optimisation; precoding; wireless channels; SCA method; SRM problem; Taylor expansion; cognitive MIMO wiretap channels; cognitive multiple-input-multiple-output wiretap channel; iterative precoding algorithm; physical layer security; secrecy rate maximisation precoding; successive convex approximation method;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2015.1486
Filename
7300536
Link To Document