Degree Type
Thesis
Date of Award
2015
Degree Name
Master of Science
Department
Electrical and Computer Engineering
First Advisor
Sang W. Kim
Abstract
In the cooperative relaying communication, the system has to defend itself against the eavesdropper which may undermines the message integrity by sending the modified messages. We propose a physical layer integrity check scheme for cooperative relaying communication, where a source broadcast the signals to both destination target and an untrustworthy relay node. The approach exploits physical layer signals in detecting the modified messages conducted by the relay. We develop a scheme that utilizes a few cryptography information in the initial message packets to estimate the optimal detecting threshold. By applying the optimal detecting method, the proposed approach achieves almost same performance provided by perfect cryptography strategy that can detect all the modified messages but with high computational cost caused by applying cryptographic encryption to all the transmitted messages.
Copyright Owner
Xudong Liu
Copyright Date
2015
Language
en
File Format
application/pdf
File Size
39 pages
Recommended Citation
Liu, Xudong, "The crypto-aided physical layer integrity check in cooperative relaying communication" (2015). Graduate Theses and Dissertations. 14500.
https://lib.dr.iastate.edu/etd/14500
