1 citations · 2 across the 9 of their papers we have counts for
9 papers
How much Training is Needed in Downlink Cell-Free mMIMO under LoS/NLoS channels?
Sai Manikanta Rishi Rani, Ribhu Chopra, Kumar Appaiah
The assumption that no LoS channels exist between wireless access points~(APs) and user equipments~(UEs) becomes questionable in the context of the recent developments in the direc…
PSA Based Power Control for Cell-Free Massive MIMO under LoS/NLoS Channels
Ashish Pratap Singh, Ribhu Chopra
A primary design goal of the cell-free~(CF) massive MIMO architecture is to provide uniformly good coverage to all the user equipments~(UEs) connected to the network. However, it h…
MIMO Radars and Massive MIMO Communication Systems can Coexist
Aparna Mishra, Ribhu Chopra
In this paper, we investigate the coexistence of a single cell massive MIMO communication system with a MIMO radar. We consider the case where the massive MIMO BS is aware of the r…
Granger Causality Detection via Sequential Hypothesis Testing
Rahul Devendra, Ribhu Chopra, Kumar Appaiah
Most of the metrics used for detecting a causal relationship among multiple time series ignore the effects of practical measurement impairments, such as finite sample effects, unde…
Impact of Mobility on Downlink Cell-Free Massive MIMO Systems
Abhinav Anand, Chandra R. Murthy, Ribhu Chopra
In this paper, we analyze the achievable downlink spectral efficiency of cell-free massive multiple input multiple output (CF-mMIMO) systems, accounting for the effects of channel…
Can Dynamic TDD Enabled Half-Duplex Cell-Free Massive MIMO Outperform Full-Duplex Cellular Massive MIMO?
Anubhab Chowdhury, Ribhu Chopra, Chandra R. Murthy
We consider a dynamic time division duplex (DTDD) enabled cell-free massive multiple-input multiple-output (CF-mMIMO) system, where each half-duplex (HD) access point (AP) is sched…
Uplink Performance Analysis of Cell-Free mMIMO Systems under Channel Aging
Ribhu Chopra, Chandra R. Murthy, Anastasios K. Papazafeiropoulos
In this paper, we investigate the impact of channel aging on the uplink performance of a cell-free~(CF) massive multiple-input multiple-output (mMIMO) system with a minimum mean sq…
Outage Probability Analysis of IRS-Assisted Systems Under Spatially Correlated Channels
Trinh Van Chien, Anastasios K. Papazafeiropoulos, Lam Thanh Tu +3
This paper investigates the impact of spatial channel correlation on the outage probability of intelligent reflecting surface (IRS)-assisted single-input single-output (SISO) commu…
Performance Analysis of Cell Free Massive MIMO systems in LoS/ NLoS Channels
Sudarshan Mukherjee, Ribhu Chopra
In cellular communication systems, it is conventional to assume the absence of a line of sight (LoS) path between the users and their associated access points (APs). This assumptio…