2011/07/27 by Jiangyuan Li, Athina P. Petropulu, Li, Jiangyuan +1
Computer Science · Engineering · #Chaos-based Image/Signal Encryption #Cooperative Communication and Network Coding #FOS: Computer and information sciences #Information Theory (cs.IT) #Wireless Communication Security Techniques
paper · pdf · doi:10.48550/arxiv.1107.5541
openalex publication_date 2011/07/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A Gaussian multiple-input multiple-output (MIMO) wiretap channel model is considered. The input is a two-antenna transmitter, while the outputs are the legitimate receiver and an eavesdropper, both equipped with multiple antennas. All channels are assumed to be known. The problem of obtaining the optimal input covariance matrix that achieves secrecy capacity subject to a power constraint is addressed, and a closed-form expression for the secrecy capacity is obtained.