Cooperative Jamming for Secure Communications in MIMO Relay Networks
By Jing Huang, A. L. Swindlehurst. IEEE Transactions on Signal Processing, 2011
349 citations recorded by the source corpus.
Secure communications can be impeded by eavesdroppers in conventional relay systems. This paper proposes cooperative jamming strategies for two-hop relay networks where the eavesdropper can wiretap the relay channels in both hops. In these approaches, the normally inactive nodes in the relay network can be used as cooperative jamming sources to confuse the eavesdropper. Linear precoding schemes are investigated for two scenarios where single or multiple data streams are transmitted via a decode-and-forward (DF) relay, under the assumption that global channel state information (CSI) is available. For the case of single data stream transmission, we derive closed-form jamming beamformers and the corresponding optimal power allocation. Generalized singular value decomposition (GSVD)-based secure relaying schemes are proposed for the transmission of multiple data streams. The optimal power allocation is found for the GSVD relaying scheme via geometric programming. Based on this result, a GSVD-based cooperative jamming scheme is proposed that shows significant improvement in terms of secrecy rate compared to the approach without jamming. Furthermore, the case involving an eavesdropper with unknown CSI is also investigated in this paper. Simulation results show that the secrecy rate is dramatically increased when inactive nodes in the relay network participate in cooperative jamming.
Subfields: Computer Networks and Communications, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/480896ce490d034c6f7280cd547bbfdc455c898a
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In Computer Networks and Communications
- Hsiao-Hwa Chen
- Xianbin Wang
- Yulong Zou
- Gan Zheng
- Weiming Shen
- Derrick Wing Kwan Ng
- A. Mukherjee
- Xiaoming Chen
In Electrical and Electronic Engineering
- Hsiao-Hwa Chen
- Xianbin Wang
- Xiaoming Chen
- Yulong Zou
- Gan Zheng
- Derrick Wing Kwan Ng
- Weiming Shen
- A. Mukherjee
Citations in the corpus
- A Survey on Multiple-Antenna Techniques for Physical Layer Security (2017, methodology): “In [141], multiple data streams transmission was considered in two-hop relaying networks, where an eavesdrop-”
- Improving Physical Layer Secrecy Using Full-Duplex Jamming Receivers (2013, background): “The idea of using destination and source as jammers in the first phase of a two-phase relay network, is proposed in [16].”
- Optimal Relay Selection for Physical-Layer Security in Cooperative Wireless Networks (2013, methodology): “In addition, [18] and [19] investigated the physical-layer security in MIMO relay networks and showed the significant improvement in terms of secrecy capacity through the use of MIMO relays.”
- Principles of Physical Layer Security in Multiuser Wireless Networks: A Survey (2010, background): “A more general case where cooperative jamming strategies guarantee secure communication in both hops without the need for external helpers was studied in [167].”