Vatanpour, shokofe, Jvan, Mohammad Reza (2015). A Cooperative Spectrum Leasing Scheme with Guaranteed Secrecy Rate for Primary Link. , 15(1), 1-8.
shokofe Vatanpour; Mohammad Reza Jvan. "A Cooperative Spectrum Leasing Scheme with Guaranteed Secrecy Rate for Primary Link". , 15, 1, 2015, 1-8.
Vatanpour, shokofe, Jvan, Mohammad Reza (2015). 'A Cooperative Spectrum Leasing Scheme with Guaranteed Secrecy Rate for Primary Link', , 15(1), pp. 1-8.
Vatanpour, shokofe, Jvan, Mohammad Reza A Cooperative Spectrum Leasing Scheme with Guaranteed Secrecy Rate for Primary Link. , 2015; 15(1): 1-8.

A Cooperative Spectrum Leasing Scheme with Guaranteed Secrecy Rate for Primary Link

The Modares Journal of Electrical Engineering
Article 1, Volume 15, Issue 1, 2015, Pages 1-8    PDF (434.44 K)
Authors
shokofe Vatanpour1; Mohammad Reza Jvan* 2
1M.Sc. student, Department of Electrical Engineering, Shahrood University of Technology, Iran.
2Assistant Professor, Department of Electrical Engineering, Shahrood University of Technology, Iran
Abstract
In this paper, we consider a cooperative cognitive radio network in which there is an OFDM primary link and multiple single carrier secondary links.The primary link is required to maintain its secrecy rate above a predefined threshold. If the secrecy rate requirement is not satisfied, the secondary system help primary link to maintain its secrecy rate requirement. In doing so, the secondary transmitters work as decode and forward (DF) relays and hence, as a reward, gains access to network resources to transmit its own information. Our objective is to maximize the data rate of secondary system while satisfying the primary secrecy rate constraint and individual transmit power constraints for primary link and secondary system. We solve our proposed optimization problem using dual Lagrange approach to find the set of cooperating secondary link, subcarrier assignments, and transmit power over each subcarrier. Using simulations, we evaluate our proposed scheme in various situations.
Keywords
Secure communications; cognitive radio network; Cooperative communications; OFDM; resource allocation; dual approach
Statistics
Article View: 94
PDF Download: 61
Statistics
Number of Journals45
Number of Issues2,171
Number of Articles24,674
Article View24,454,625
PDF Download17,557,935