Improved Rate-Equivocation Regions for Secure Cooperative Communication

Details Improved Rate-Equivocation Regions for Secure Cooperative Communication Improved Rate-Equivocation Regions for Secure Cooperative Communication

2011-02-17

arxiv.org/abs/1102.3500v1

Computer Science

Information Theory

18 pages, 5 figures

Scientific paper

A simple four node network in which cooperation improves the information-theoretic secrecy is studied. The channel consists of two senders, a receiver, and an eavesdropper. One or both senders transmit confidential messages to the receiver, while the eavesdropper tries to decode the transmitted message. The main result is the derivation of a newly achievable rate-equivocation region that is shown to be larger than a rate-equivocation region derived by Lai and El Gamal for the relay-eavesdropper channel. When the rate of the helping interferer is zero, the new rate-equivocation region reduces to the capacity-equivocation region over the wire-tap channel, hence, the new achievability scheme can be seen as a generalization of a coding scheme proposed by Csiszar and Korner. This result can naturally be combined with a rate-equivocation region given by Tang et al. (for the interference assisted secret communication), yielding an even larger achievable rate-equivocation region.

Affiliated with

Also associated with

No associations

Rating

Improved Rate-Equivocation Regions for Secure Cooperative Communication does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Improved Rate-Equivocation Regions for Secure Cooperative Communication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved Rate-Equivocation Regions for Secure Cooperative Communication will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-380120