LDPC Code Design for the BPSK-constrained Gaussian Wiretap Channel

Abstract

A coding scheme based on irregular low-density parity-check (LDPC) codes is proposed to send secret messages from a source over the Gaussian wiretap channel to a destination in the presence of a wiretapper, with the restriction that the source can send only binary phase-shift keyed (BPSK) symbols. The secrecy performance of the proposed coding scheme is measured by the secret message rate through the wiretap channel as well as the equivocation rate about the message at the wiretapper. A code search procedure is suggested to obtain irregular LDPC codes that achieve good secrecy performance in such context.

submitted to IEEE GLOBECOM 2011 - Communication Theory Symposium

References in corpus (3)

• Channel polarization: A method for constructing capacity-achieving codes for symmetric binary-input memoryless channels
• Secure Nested Codes for Type II Wiretap Channels
• Secret Sharing LDPC Codes for the BPSK-constrained Gaussian Wiretap Channel

Cited by in corpus (5)

• Coding with Scrambling, Concatenation, and HARQ for the AWGN Wire-Tap Channel: A Security Gap Analysis
• On Secrecy Metrics for Physical Layer Security over Quasi-Static Fading Channels
• Performance assessment and design of finite length LDPC codes for the Gaussian wiretap channel
• Quantifying Equivocation for Finite Blocklength Wiretap Codes
• LDPC-Based Code Hopping for Gaussian Wiretap Channel With Limited Feedback