537 citations · 5.2k across the 258 of their papers we have counts for
6 papers · 2 filters
Multi-User MIMO with outdated CSI: Training, Feedback and Scheduling
Ansuman Adhikary, Haralabos C. Papadopoulos, Sean A. Ramprashad +1
Conventional MU-MIMO techniques, e.g. Linear Zero-Forced Beamforming (LZFB), require sufficiently accurate channel state information at the transmitter (CSIT) in order to realize s…
Quantized Compute and Forward: A Low-Complexity Architecture for Distributed Antenna Systems
Song-Nam Hong, Giuseppe Caire
We consider a low-complexity version of the Compute and Forward scheme that involves only scaling, offset (dithering removal) and scalar quantization at the relays. The proposed sc…
Achieving "Massive MIMO" Spectral Efficiency with a Not-so-Large Number of Antennas
Hoon Huh, Giuseppe Caire, Haralabos C. Papadopoulos +1
The main focus and contribution of this paper is a novel network-MIMO TDD architecture that achieves spectral efficiencies comparable with "Massive MIMO", with one order of magnitu…
A Nonlinear Approach to Interference Alignment
Peyman Razaghi, Giuseppe Caire
Cadambe and Jafar (CJ) alignment strategy for the K-user scalar frequency-selective fading Gaussian channel, with encoding over blocks of 2n+1 random channel coefficients (subcarri…
Two Birds and One Stone: Gaussian Interference Channel with a Shared Out-of-Band Relay of Limited Rate
Peyman Razaghi, Song Nam Hong. Lei Zhou, Wei Yu +1
The two-user Gaussian interference channel with a shared out-of-band relay is considered. The relay observes a linear combination of the source signals and broadcasts a common mess…
On Achievability of Gaussian Interference Channel Capacity to within One Bit
Peyman Razaghi, Giuseppe Caire
In the earlier version of this paper, it was wrongly claimed that time-sharing is required to achieve the capacity region of the Gaussian interference channel to within one bit, es…