24 citations · 50 across the 6 of their papers we have counts for
6 papers
Secrecy Rate of Cooperative MIMO in Presence of a Location Constrained Eavesdropper
Zhong Zheng, Zygmunt Haas, Mario Kieburg
We propose and study the cooperative MIMO architecture to enable and to improve the secrecy transmissions between clusters of mobile devices in the presence of an eavesdropper with…
Asymptotic Analysis of Multi-Antenna Cognitive Radio Systems Using Extreme Value Theory
Ruifeng Duan, Zhong Zheng, Riku Jäntti +1
We consider a spectrum-sharing cognitive radio system with antenna selection applied at the secondary transmitter (ST). Based on the extreme value theory, we deduce a simple and ac…
Outage Capacity of Rayleigh Product Channels: a Free Probability Approach
Zhong Zheng, Lu Wei, Roland Speicher +3
The Rayleigh product channel model is useful in capturing the performance degradation due to rank deficiency of MIMO channels. In this paper, such a performance degradation is inve…
On the Outage Capacity of Orthogonal Space-time Block Codes Over Multi-cluster Scattering MIMO Channels
Lu Wei, Zhong Zheng, Jukka Corander +1
Multiple cluster scattering MIMO channel is a useful model for pico-cellular MIMO networks. In this paper, orthogonal space-time block coded transmission over such a channel is con…
A Blind Time-Reversal Detector in the Presence of Channel Correlation
Zhong Zheng, Lu Wei, Jyri Hämäläinen +1
A blind target detector using the time reversal transmission is proposed in the presence of channel correlation. We calculate the exact moments of the test statistics involved. The…
Approximation to Distribution of Product of Random Variables Using Orthogonal Polynomials for Lognormal Density
Zhong Zheng, Lu Wei, Jyri Hämäläinen +1
We derive a closed-form expression for the orthogonal polynomials associated with the general lognormal density. The result can be utilized to construct easily computable approxima…