Paper Info
Title
Prospective Multiple Antenna Technologies for Beyond 5G
Abstract
Multiple antenna technologies have attracted much research interest for several decades and have gradually made their way into mainstream communication systems. Two main benefits are adaptive beamforming gains and spatial multiplexing, leading to high data rates per user and per cell, especially when large antenna arrays are adopted. Since multiple antenna technology has become a key component of the fifth-generation (5G) networks, it is time for the research community to look for new multiple antenna technologies to meet the immensely higher data rate, reliability, and traffic demands in the beyond 5G era. Radically new approaches are required to achieve orders-of-magnitude improvements in these metrics. There will be large technical challenges, many of which are yet to be identified. In this paper, we survey three new multiple antenna technologies that can play key roles in beyond 5G networks: cell-free massive MIMO, beamspace massive MIMO, and intelligent reflecting surfaces. For each of these technologies, we present the fundamental motivation, key characteristics, recent technical progresses, and provide our perspectives for future research directions. The paper is not meant to be a survey/tutorial of a mature subject, but rather serve as a catalyst to encourage more research and experiments in these multiple antenna technologies.
Year
DOI
Venue
2020
10.1109/JSAC.2020.3000826
IEEE Journal on Selected Areas in Communications
Keywords
DocType
Volume
Beyond 5G,cell-free massive MIMO,beamspace,intelligent reflecting surface
Journal
38
Issue
ISSN
Citations 
8
0733-8716
78
PageRank 
References 
Authors
1.53
0
6
Name
Order
Citations
PageRank
Jiayi Zhang191174.44
Emil Björnson23446171.49
Michail Matthaiou31842108.74
Derrick Wing Kwan Ng43588189.08
Hong Yang545519.71
David J. Love62424157.01