3 citations · 3 across the 7 of their papers we have counts for
8 papers
Variational Bayesian Channel Estimation and Data Detection for Cell-Free Massive MIMO with Low-Resolution Quantized Fronthaul Links
Sajjad Nassirpour, Toan-Van Nguyen, Hien Q. Ngo +3
We study the joint channel estimation and data detection (JED) problem in a cell-free massive multiple-input multiple-output (CF-mMIMO) network, where access points (APs) communica…
Variational Bayesian Inference for Time-Varying Massive MIMO Channels: Estimation and Detection
Sajjad Nassirpour, Toan-Van Nguyen, Duy H. N. Nguyen
Massive multiple-input multiple-output (MIMO) stands as a key technology for advancing performance metrics such as data rate, reliability, and spectrum efficiency in the fifth gene…
MIMO Detection with Spatial Sigma-Delta ADCs: A Variational Bayesian Approach
Toan-Van Nguyen, Sajjad Nassirpour, Italo Atzeni +3
The spatial Sigma-Delta () architecture can be leveraged to reduce the quantization noise and enhance the effective resolution of few-bit analog-to-digital converters (ADCs) at…
Mix-and-Conquer: Beamforming Design with Interconnected RIS for Multi-User Networks
Sajjad Nassirpour, Naoki Kusashima, Jose Flordelis +1
We propose a new reconfigurable intelligent surface (RIS) structure, referred to as interconnected RIS (I-RIS), which allows the RIS elements to be interconnected and share the inc…
Control and Placement of Finite-Resolution Intelligent Surfaces in IoT Systems with Imperfect CSI
Sajjad Nassirpour, Alireza Vahid, Dinh-Thuan Do +1
In this paper, we study the advantages of using reconfigurable intelligent surfaces (RISs) for interference suppression in single-input single-output (SISO) distributed Internet of…
GreenMO: Virtualized User-proportionate MIMO
Agrim Gupta, Sajjad Nassirpour, Manideep Dunna +3
With the turn of new decade, wireless communications face a major challenge on connecting many more new users and devices, at the same time being energy efficient and minimizing it…
Reassembly Codes for the Chop-and-Shuffle Channel
Sajjad Nassirpour, Ilan Shomorony, Alireza Vahid
We study the problem of retrieving data from a channel that breaks the input sequence into a set of unordered fragments of random lengths, which we refer to as the chop-and-shuffle…
On the Stability Region of Intermittent Interference Networks
Sajjad Nassirpour, Alireza Vahid
Recent information-theoretic studies have resulted in several interference management (IM) techniques that promise significant capacity improvements over interference avoidance tec…