43 citations · 99 across the 7 of their papers we have counts for
5 papers · 1 filter
On the Transmit Beamforming for MIMO Wiretap Channels: Large-System Analysis
Maksym A. Girnyk, Frédéric Gabry, Mikko Vehkaperä +2
With the growth of wireless networks, security has become a fundamental issue in wireless communications due to the broadcast nature of these networks. In this work, we consider MI…
On the Optimal Precoding for MIMO Gaussian Wire-Tap Channels
Arash Khabbazibasmenj, Maksym A. Girnyk, Sergiy A. Vorobyov +2
We consider the problem of finding secrecy rate of a multiple-input multiple-output (MIMO) wire-tap channel. A transmitter, a legitimate receiver, and an eavesdropper are all equip…
Typical -recovery limit of sparse vectors represented by concatenations of random orthogonal matrices
Yoshiyuki Kabashima, Mikko Vehkapera, Saikat Chatterjee
We consider the problem of recovering an -dimensional sparse vector $\vm{x}$ from its linear transformation $\vm{y}=\vm{D} \vm{x}$ of dimension. Minimizing the -…
On an Achievable Rate of Large Rayleigh Block-Fading MIMO Channels with No CSI
Keigo Takeuchi, Ralf R. Mueller, Mikko Vehkaperae +1
Training-based transmission over Rayleigh block-fading multiple-input multiple-output (MIMO) channels is investigated. As a training method a combination of a pilot-assisted scheme…
Large-System Analysis of Joint Channel and Data Estimation for MIMO DS-CDMA Systems
Keigo Takeuchi, Mikko Vehkaperae, Toshiyuki Tanaka +1
This paper presents a large-system analysis of the performance of joint channel estimation, multiuser detection, and per-user decoding (CE-MUDD) for randomly-spread multiple-input…