Security-oriented transmission based on cooperative relays in cognitive radio

Author

Wang Li ; Ma Xin ; Ma Yue ; Teng Yinglei ; Zhang Yong

Author_Institution

Beijing Key Lab. of Work Safety Intell. Monitoring, Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

10

Issue

8

fYear

2013

fDate

Aug. 2013

Firstpage

27

Lastpage

35

Abstract

In this paper, we propose a security-oriented transmission scheme with the help of multiple relays in Cognitive Radio (CR). To maximise the Secrecy Capacity (SC) of the source-destination link in CR, both beamforming and cooperative jamming technologies are used to improve the performance of the Secondary User (SU) and protect the Primary User (PU). The effectiveness of the proposed scheme is demonstrated using extensive simulation. Both theoretical analyses and simulation results reveal that the proposed scheme contributes to the secure transmission of the SU with acceptable attenuation of the Signal-to-Noise Ratio (SNR) at the PU receiver, and the upper bound of the SC at the SU receiver is able to exploit the power allocation strategy.

Keywords

array signal processing; cognitive radio; cooperative communication; jamming; relay networks (telecommunication); resource allocation; telecommunication security; SNR; SU receiver; beamforming; cognitive radio; cooperative jamming; cooperative relays; power allocation strategy; primary user; secondary user; secrecy capacity; security-oriented transmission scheme; signal-to-noise ratio; source-destination link; Interference; Jamming; Network security; Receivers; Relays; Resource management; Signal to noise ratio; CR; SC; acceptable SNR attenuation level; power allocation;

fLanguage

English

Journal_Title

Communications, China

Publisher

ieee

ISSN

1673-5447

Type

jour

DOI

10.1109/CC.2013.6633742

Filename

6633742