Achievable Rate Regions of Cognitive Radio Channels With a Confidential Message

被引：1
|
作者：
Zhang, Lan [1 ]
Xin, Yan [2 ]
Liang, Ying-Chang [3 ]
Wang, Xiaodong [4 ]
机构：
[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 118622, Singapore
[2] NEC Lab America Inc, Princeton, NJ 08540 USA
[3] Inst Infocomm Res, Singapore 138632, Singapore
[4] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA
来源：
2009 43RD ANNUAL CONFERENCE ON INFORMATION SCIENCES AND SYSTEMS, VOLS 1 AND 2 | 2009年
关键词：
BROADCAST CHANNELS; CAPACITY; INTERFERENCE;
D O I：
10.1109/CISS.2009.5054737
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper investigates cognitive radio channels with a confidential message (CRC-CM) from an information-theoretic perspective. It is assumed that the secondary user (SU) transmitter has perfect and a priori knowledge on the message being transmitted by the primary user (PU) and the message of the SU is confidential to the PU receiver. An achievable rate region of the CRC-CM in the discrete memoryless (DM) case is derived. Two achievable rate regions are obtained by extending the DM rate result to a multi-antenna Gaussian CRC-CM case with two transmission strategies. A numerical example in the multi-antenna Gaussian case is provided.
引用
收藏
页码：313 / +
页数：2
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