Research Article
Bounds on the Secrecy Capacity Region of the Degraded Multiple-Access Relay Wiretap Channel
@INPROCEEDINGS{10.4108/eai.15-8-2015.2260624, author={Bin Dai and Zheng Ma and Linman Yu}, title={Bounds on the Secrecy Capacity Region of the Degraded Multiple-Access Relay Wiretap Channel}, proceedings={10th EAI International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2015}, month={9}, keywords={multiple-access wiretap channel relay channel secrecy capacity region}, doi={10.4108/eai.15-8-2015.2260624} }- Bin Dai
Zheng Ma
Linman Yu
Year: 2015
Bounds on the Secrecy Capacity Region of the Degraded Multiple-Access Relay Wiretap Channel
CHINACOM
IEEE
DOI: 10.4108/eai.15-8-2015.2260624
Abstract
In this paper, we investigate the effects of an additional trusted relay node on the secrecy of the degraded multipleaccess wiretap channel (DMAC-WT) by considering the model of the degraded multiple-access relay wiretap channel (DMARCWT). Inner and outer bounds on the secrecy capacity regions of the DMARC-WT are provided for both the discrete memoryless and the Gaussian cases. For the Gaussian DMARC-WT, we find that in some particular cases, Tekin-Yener’s achievable secrecy rate region of the Gaussian DMAC-WT is enhanced by using this trusted relay node.
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