Vishwakarma, Sanjay ; Chockalingam, A. (2014) MIMO decode-and-forward relay beamforming for secrecy with cooperative jamming In: 2014 Twentieth National Conference on Communications (NCC), 28 February - 2 March 2014, Kanpur, India.
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Official URL: http://ieeexplore.ieee.org/document/6811256/
Related URL: http://dx.doi.org/10.1109/NCC.2014.6811256
Abstract
In this paper, we consider decode-and-forward (DF) relay beamforming for secrecy with cooperative jamming (CJ) in the presence of multiple eavesdroppers. The communication between a source-destination pair is aided by a multiple-input multiple-output (MIMO) relay. The source has one transmit antenna and the destination and eavesdroppers have one receive antenna each. The source and the MIMO relay are constrained with powers PS and PR, respectively. We relax the rank-1 constraint on the signal beamforming matrix and transform the secrecy rate max-min optimization problem to a single maximization problem, which is solved by semidefinite programming techniques. We obtain the optimum source power, signal relay weights, and jamming covariance matrix. We show that the solution of the rank-relaxed optimization problem has rank-1. Numerical results show that CJ can improve the secrecy rate.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Source: | Copyright of this article belongs to Institute of Electrical and Electronics Engineers. |
| Keywords: | Semidefinite Programming; Relay Beamforming; Decode-and-Forward; Physical Layer Security; Secrecy Rate; Cooperative Jamming; Multiple Eavesdroppers |
| ID Code: | 102188 |
| Deposited On: | 24 Mar 2017 11:18 |
| Last Modified: | 24 Mar 2017 11:18 |
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