Zhu, Jingge
Mo, Jianhua
Tao, Meixia
Cooperative Secret Communication with Artificial Noise in Symmetric Interference Channel
IEEE Communications Letters
IEEE Communications Letters
IEEE Communications Letters
IEEE Communications Letters
14
10
2010
2010
We consider the symmetric Gaussian interference channel where two users try to enhance their secrecy rates in a cooperative manner. Artificial noise is introduced along with useful information. We derive the power control and artificial noise parameter for two kinds of optimal points, max-min point and single user point. It is shown that there exists a critical value P-c of the power constraint, below which the max-min point is an optimal point on the secrecy rate region, and above which time-sharing between single user points achieves larger secrecy rate pairs. It is also shown that artificial noise can help to enlarge the secrecy rate region, in particular on the single user point. © 2006 IEEE.
IEEE Communications Letters
Journal Articles
10.1109/LCOMM.2010.081910.101121