The Secrecy Capacity of the MIMO Wiretap Channel
Fr\'ed\'erique Oggier, Babak Hassibi
TL;DR
This paper determines the maximum secure communication rate in a MIMO wiretap channel, where a transmitter communicates confidentially with a legitimate receiver amidst an eavesdropper, considering arbitrary antenna configurations.
Contribution
It provides the first explicit computation of the perfect secrecy capacity for the MIMO broadcast channel with arbitrary numbers of antennas.
Findings
Derived the secrecy capacity formula for MIMO wiretap channels.
Extended capacity results to arbitrary antenna configurations.
Established conditions for achieving perfect secrecy.
Abstract
We consider the MIMO wiretap channel, that is a MIMO broadcast channel where the transmitter sends some confidential information to one user which is a legitimate receiver, while the other user is an eavesdropper. Perfect secrecy is achieved when the the transmitter and the legitimate receiver can communicate at some positive rate, while insuring that the eavesdropper gets zero bits of information. In this paper, we compute the perfect secrecy capacity of the multiple antenna MIMO broadcast channel, where the number of antennas is arbitrary for both the transmitter and the two receivers.
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Taxonomy
TopicsWireless Communication Security Techniques · Cooperative Communication and Network Coding · Chaos-based Image/Signal Encryption