115 citations · 254 across the 14 of their papers we have counts for
14 papers
Current-Steering DAC Architecture Design for Amplitude Mismatch Error Minimization
Ramin Babaee, Shahab Oveis Gharan, Martin Bouchard
We propose a novel digital-to-analog converter (DAC) weighting architecture that statistically minimizes the distortion caused by random current mismatches. Unlike binary, thermome…
Joint Precoding and Probabilistic Constellation Shaping using Arithmetic Distribution Matching
Babaee Ramin, Oveis Gharan Shahab, Bouchard Martin
The problem of joint shaping and precoding is studied in this paper. We introduce statistical dependencies among consecutive symbols to shape the constellation while minimizing the…
Demonstration of an 8D Modulation Format with Reduced Inter-Channel Nonlinearities in a Polarization Multiplexed Coherent System
A. D. Shiner, M. Reimer, A. Borowiec +6
We demonstrate a polarization-managed 8-dimensional modulation format that is time domain coded to reduce inter-channel nonlinearity. Simulation results show a 2.33 dB improvement…
Real Interference Alignment
Abolfazl Seyed Motahari, Shahab Oveis-Gharan, Mohammad-Ali Maddah-Ali +1
In this paper, we show that the total Degrees-Of-Freedoms (DOF) of the -user Gaussian Interference Channel (GIC) can be achieved by incorporating a new alignment technique known…
Diversity-Multiplexing Tradeoff in Multi-Antenna Multi-Relay Networks: Improvements and Some Optimality Results
Shahab Oveis Gharan, Alireza Bayesteh, Amir K. Khandani
This paper investigates the benefits of Amplify-and-Forward (AF) relaying in the setup of multi-antenna wireless networks. The concept of Random Sequential (RS) relaying is previou…
Real Interference Alignment with Real Numbers
Abolfazl S. Motahari, Shahab Oveis Gharan, Amir K. Khandani
A novel coding scheme applicable in networks with single antenna nodes is proposed. This scheme converts a single antenna system to an equivalent Multiple Input Multiple Output (MI…