Rank-deficient solutions for optimal signaling over secure MIMO channels
Ημερομηνία
2014ISBN
978-1-4799-5186-4Εκδότης
Institute of Electrical and Electronics Engineers Inc.Source
IEEE International Symposium on Information Theory - ProceedingsIEEE International Symposium on Information Theory - Proceedings
Pages
201-205Google Scholar check
Keyword(s):
Metadata
Εμφάνιση πλήρους εγγραφήςΕπιτομή
Capacity-achieving signaling strategies for the Gaussian wiretap MIMO channel are investigated without the degradedness assumption. In addition to known solutions, a number of new rank-deficient solutions for the optimal transmit covariance matrix are obtained. The case of weak eavesdropper is considered in details and the optimal covariance is established in an explicit, closed-form with no extra assumptions. © 2014 IEEE.