Delay-Optimal Coding for Secure Transmission over Parallel Burst Erasure Channels with an Eavesdropper

• Published in: Proceedings / IEEE International Symposium on Information Theory pp. 960 - 965
• Main Author: Frank, Anna
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.06.2020
• Subjects: burst erasure multiple-link code; Channel models; Codes; Delays; Galois fields; low delay; Oral communication; Receivers; Security; streaming code; Surveillance; Symbols; Wireless networks
• ISSN: 2157-8117
• DOI: 10.1109/ISIT44484.2020.9174235

For streaming applications, we consider parallel burst erasure channels in the presence of an eavesdropper. The legitimate receiver must perfectly recover each source symbol subject to a decoding delay constraint without the eavesdropper gaining any information from his observation. For a certain class of code parameters, we propose delay-optimal M-link codes that recover multiple bursts of erasures of a limited length, and where the codes provide perfect security even if the eavesdropper can observe a link of his choice. Our codes achieve the maximum secrecy rate for the channel model.