Results 141 to 150 of about 20,641 (239)

Mitigation pilot contamination based on matching technique for uplink cell-free massive MIMO systems. [PDF]

Sci Rep, 2022
Al Ayidh A, Sambo Y, Imran MA.
europepmc   +1 more source

Co-Existing/Cooperating Multicell Massive MIMO and Cell-Free Massive MIMO Deployments: Heuristic Designs and Performance Analysis

IEEE Open Journal of the Communications Society
Cell-free massive MIMO (CF-mMIMO) systems represent a deeply investigated evolution from the conventional multicell co-located massive MIMO (MC-mMIMO) network deployments.
Stefano Buzzi, Carmen D'Andrea, Li Wang, Ahmet Hasim Gokceoglu, Gunnar Peters   +4 more
doaj   +1 more source

Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast. [PDF]

Sensors (Basel), 2021
Li J, Chen L, Zhu P, Wang D, You X.
europepmc   +1 more source

6DMA-Aided Cell-Free Massive MIMO Communication

IEEE Wireless Communications Letters
In this letter, we propose a six-dimensional movable antenna (6DMA)-aided cell-free massive multiple-input multiple-output (MIMO) system to fully exploit its macro spatial diversity, where a set of distributed access points (APs), each equipped with multiple 6DMA surfaces, cooperatively serve all users in a given area. Connected to a central processing
Xiaoming Shi, Xiaodan Shao, Beixiong Zheng, Rui Zhang   +3 more
openaire   +2 more sources

Analysis and Optimization for Downlink Cell-Free Massive MIMO System with Mixed DACs. [PDF]

Sensors (Basel), 2021
Zhou M, Zhang Y, Qiao X, Tan W, Yang L.
europepmc   +1 more source

Performance Evaluation of Cell-Free Massive MIMO Systems Based on Mixed Indoor/Outdoor Measurements

IEEE Access
This paper presents an extensive investigation into the performance of cell-free massive multiple-input multiple-output (CF-mMIMO) systems using empirical channel data.
Eric Pierre Simon, Joumana Farah, Valentin Picquet, Pierre Laly   +3 more
doaj   +1 more source

Cell-Free Massive MIMO-Assisted SWIPT for IoT Networks

IEEE Transactions on Wireless Communications
This paper studies cell-free massive multiple-input multiple-output (CF-mMIMO) systems that underpin simultaneous wireless information and power transfer (SWIPT) for separate information users (IUs) and energy users (EUs) in Internet of Things (IoT) networks.
Mohammadali Mohammadi, Le-Nam Tran, Zahra Mobini, Hien Quoc Ngo, Michail Matthaiou   +4 more
openaire   +3 more sources

Energy-Efficient Cell-Free Massive MIMO with Wireless Fronthaul

2024 58th Asilomar Conference on Signals, Systems, and Computers
Presented in Asilomar Signals, Systems and Computers ...
Demir, Ozlem Tugfe, Cavdar, Cicek, Topal, Ozan Alp, Bjornson, Emil   +3 more
openaire   +3 more sources

NOMA/OMA Mode Selection-Based Cell-Free Massive MIMO

, 2019
In this paper, non-orthogonal-multiple-access (NOMA)-based cell-free massive multiple-input multiple-output (MIMO) is investigated, where the users are grouped into multiple clusters. Exploiting conjugate beamforming, the bandwidth efficiency (BE) of the system is derived while the assumption that the users performing realistic successive interference ...
Bashar, Manijeh, Cumanan, Kanapathippillai, Burr, Alister G., Ngo, Hien Quoc, Hanzo, Lajos, Xiao, Pei   +5 more
openaire   +4 more sources

Learning Beamforming in Cell-free Massive MIMO ISAC Systems

2024 IEEE 25th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Accepted in IEEE SPAWC 2024. Code files will be available on the Wireless Intelligence Lab website: https://www.wi-lab.net/research/
Demirhan, Umut, Alkhateeb, Ahmed
openaire   +2 more sources