39 citations · 47 across the 2 of their papers we have counts for
7 papers
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…
How Many Beamforming Vectors Generate the Same Beampattern?
Arash Khabbazibasmenj, Aboulnasr Hassanien, Sergiy A. Vorobyov
In this letter, we address the fundamental question of how many beamforming vectors exist which generate the same beampattern? The question is relevant to many fields such as, for…
Efficient Transmit Beamspace Design for Search-free Based DOA Estimation in MIMO Radar
Arash Khabbazibasmenj, Aboulnasr Hassanien, Sergiy A. Vorobyov +1
In this paper, we address the problem of transmit beamspace design for multiple-input multiple-output (MIMO) radar with colocated antennas in application to direction-of-arrival (D…
Robust Adaptive Beamforming for General-Rank Signal Model with Positive Semi-Definite Constraint via POTDC
Arash Khabbazibasmenj, Sergiy A. Vorobyov
The robust adaptive beamforming (RAB) problem for general-rank signal model with an additional positive semi-definite constraint is considered. Using the principle of the worst-cas…
Sum-Rate Maximization in Two-Way AF MIMO Relaying: Polynomial Time Solutions to a Class of DC Programming Problems
Arash Khabbazibasmenj, Florian Roemer, Sergiy A. Vorobyov +1
Sum-rate maximization in two-way amplify-and-forward (AF) multiple-input multiple-output (MIMO) relaying belongs to the class of difference-of-convex functions (DC) programming pro…
Power Allocation Based on SEP Minimization in Two-Hop Decode-and-Forward Relay Networks
Arash Khabbazibasmenj, Sergiy A. Vorobyov
The problem of optimal power allocation among the relays in a two-hop decode-and-forward cooperative relay network with independent Rayleigh fading channels is considered. It is as…