NDLI: Physical Integrity Check in Cooperative Relay Communications

Content Provider	IEEE Xplore Digital Library
Author	Sang Wu Kim
Copyright Year	2002
Abstract	We propose a physical-layer technique for checking the integrity of information provided by an intermediate node (relay) in cooperative relay communication systems. The proposed approach, built on the theory of likelihood ratio test, exploits the physical-layer signal from the source in detecting any data modification (false data injection attack) made by the relay. We present the optimum detection method that minimizes the end-to-end outage probability and the minmax detection method that minimizes the maximum possible outage probability under unknown attack probability. We show that the optimum detection technique can provide almost the same end-to-end outage probability that can be provided by the ideal cryptographic technique that perfectly detects the false injection at the expense of high computational cost and bandwidth overhead. The proposed physical integrity check can be used as an additional layer of protection or can complement to the conventional cryptographic techniques.
Starting Page	6401
Ending Page	6413
Page Count	13
File Size	698087
File Format	PDF
ISSN	15361276
Volume Number	14
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Wireless communication Cryptography Decoding Reliability Fading Random variables cooperative relay communications Physical integrity check false data injection attack likelihood ratio test optimum detection minmax detection
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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