Abstract
This paper investigates the impact of cooperation with an untrusted relay in multi-source multi-destination networks. The set up considered is one where the relay is the only means of communications due to the absence of direct links between the sources and the destinations. Since the relay is untrusted, all messages from the sources need to be kept secret from the relay. Furthermore, the destinations are assumed to have different levels of security clearance, i.e., some private messages should only be decoded by their intended receiver and should be kept secret from other destinations. An achievable secure rate region is found by using random binning at the sources, cooperative jamming from the destinations, and compress-and-forward at the relay. Additionally, a genie aided outer bound on the secure rate region is derived. Comparison of inner and outer bounds are provided.
Recommended Citation
A. A. Zewail et al., "Multi-Terminal Networks with an Untrusted Relay," 2014 52nd Annual Allerton Conference on Communication, Control, and Computing, Allerton 2014, pp. 895 - 902, article no. 7028549, Institute of Electrical and Electronics Engineers, Jan 2014.
The definitive version is available at https://doi.org/10.1109/ALLERTON.2014.7028549
Department(s)
Electrical and Computer Engineering
International Standard Book Number (ISBN)
978-147998009-3
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
30 Jan 2014
