115 citations · 254 across the 14 of their papers we have counts for
10 papers · 1 filter
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…
A New Achievable Rate for the Gaussian Parallel Relay Channel
Seyed Saeed, Changiz Rezaei, Shahab Oveis Gharan +1
Schein and Gallager introduced the Gaussian parallel relay channel in 2000. They proposed the Amplify-and-Forward (AF) and the Decode-and-Forward (DF) strategies for this channel.…
Cooperative Strategies for the Half-Duplex Gaussian Parallel Relay Channel: Simultaneous Relaying versus Successive Relaying
Seyed Saeed Changiz Rezaei, Shahab Oveis Gharan, Amir K. Khandani
This study investigates the problem of communication for a network composed of two half-duplex parallel relays with additive white Gaussian noise. Two protocols, i.e., \emph{Simult…
Optimal Coding for the Erasure Channel with Arbitrary Alphabet Size
Shervan Fashandi, Shahab Oveis Gharan, Amir K. Khandani
An erasure channel with a fixed alphabet size , where , is studied. It is proved that over any erasure channel (with or without memory), Maximum Distance Separable (MDS…
On the Diversity-Multiplexing Tradeoff in Multiple-Relay Network
Shahab Oveis Gharan, Alireza Bayesteh, Amir K. Khandani
This paper studies the setup of a multiple-relay network in which half-duplex multiple-antenna relays assist in the transmission between a/several multiple-antenna transmitter(…
Channel Code Design with Causal Side Information at the Encoder
Hamid Farmanbar, Shahab Oveis Gharan, Amir Keyvan Khandani
The problem of channel code design for the -ary input AWGN channel with additive -ary interference where the sequence of i.i.d. interference symbols is known causally at the…
Optimum Diversity-Multiplexing Tradeoff in the Multiple Relays Network
Shahab Oveis Gharan, Alireza Bayesteh, Amir K. khandani
In this paper, a multiple-relay network in considered, in which single-antenna relays assist a single-antenna transmitter to communicate with a single-antenna receiver in a hal…
Asymptotic Analysis of Amplify and Forward Relaying in a Parallel MIMO Relay Network
Shahab Oveis Gharan, Alireza Bayesteh, Amir K. Khandani
This paper considers the setup of a parallel MIMO relay network in which relays, each equipped with antennas, assist the transmitter and the receiver, each equipped with $M…