Beamforming and Antenna Grouping Design for the Multi-Antenna Relay with Energy Harvesting to Improve Secrecy Rate

被引：2

作者：

Lei, Weijia ^{[1
]}

Zhan, Meihui ^{[1
]}

机构：

[1] Chongqing Univ Posts & Telecommun, Chongqing Key Lab Mobile Commun Technol, Chongqing 400065, Peoples R China

来源：

INFORMATION | 2016年 / 7卷 / 03期

基金：

中国国家自然科学基金;

关键词：

physical layer security; energy harvesting; multi-antenna relay; beamforming; antenna grouping; secrecy rate;

D O I：

10.3390/info7030038

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The physical security strategy in the wireless network with a single-antenna eavesdropper is studied. The information transmits from a single-antenna source to a single-antenna destination, and an energy-limited multi-antenna relay is employed to forward information. The antennas of the relay are divided into two groups. One group receives and forwards information, and the other converts the received signal into energy. Beamforming is used by the relay to prevent the eavesdropper from intercepting confidential information. For the purpose of maximizing the secrecy rate, antenna grouping and beamforming vectors are designed. A low complexity scheme of antenna grouping is presented. The simulation results show that the secrecy rate can be significantly improved by arranging part of the antennas for energy harvesting, and part for forwarding and optimizing the beamforming vector at the relay. The antenna grouping scheme significantly reduces the computational complexity at the cost of acceptable performance loss.

引用

页数：11

共 19 条

[1] Wireless Powered Communication: Opportunities and Challenges [J].

Bi, Suzhi ;

Ho, Chin Keong ;

Zhang, Rui .

IEEE COMMUNICATIONS MAGAZINE, 2015, 53 (04) :117-125

[2] SECRECY WIRELESS INFORMATION AND POWER TRANSFER: CHALLENGES AND OPPORTUNITIES [J].

Chen, Xiaoming ;

Ng, Derrick Wing Kwan ;

Chen, Hsiao-Hwa .

IEEE WIRELESS COMMUNICATIONS, 2016, 23 (02) :54-61

[3]

Chen XM, 2014, IEEE GLOB COMM CONF, P4131, DOI 10.1109/GLOCOM.2014.7037455

[4] Opportunistic Relaying for Secrecy Communications: Cooperative Jamming vs. Relay Chatting [J].

Ding, Zhiguo ;

Leung, Kin K. ;

Goeckel, Dennis L. ;

Towsley, Don .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2011, 10 (06) :1725-1729

[5] Improving Wireless Physical Layer Security via Cooperating Relays [J].

Dong, Lun ;

Han, Zhu ;

Petropulu, Athina P. ;

Poor, H. Vincent .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2010, 58 (03) :1875-1888

[6] Robust Secure Transmission in MISO Simultaneous Wireless Information and Power Transfer System [J].

Feng, Renhai ;

Li, Quanzhong ;

Zhang, Qi ;

Qin, Jiayin .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2015, 64 (01) :400-405

[7]

Gurakan B., 2012, Proceedings of the 2012 IEEE International Symposium on Information Theory - ISIT, P965, DOI 10.1109/ISIT.2012.6284706

[8] Energy Cooperation in Energy Harvesting Communications [J].

Gurakan, Berk ;

Ozel, Omur ;

Yang, Jing ;

Ulukus, Sennur .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2013, 61 (12) :4884-4898

[9]

Ju H, 2014, IEEE GLOB COMM CONF, P1430, DOI 10.1109/GLOCOM.2014.7037009

[10]

LEUNGYANCHEONG SK, 1978, IEEE T INFORM THEORY, V24, P451, DOI 10.1109/TIT.1978.1055917

← 1 2 →