Paper Info
Title
Digital Beamforming Algorithm For 5g Low-Shf Band Massive Mimo
Abstract
Towards furthering the industrial revolution, the concept of a new cellular network began to be drawn up around 2010 as the fifth generation (5G) mobile wireless communication system. One of the main differences between the fourth generation (4G) mobile communication system Long Term Evolution (LTE) and 5G new radio (NR) is the frequency bands utilized. 5G NR assumes higher frequency bands. Effective utilization of the higher frequency bands needs to resolve the technical issue of the larger path-loss. Massive multiple-input multiple-output (Massive MIMO) beamforming (BF) technology contributes to overcome this problem, hence further study of Massive MIMO BF for each frequency band is necessary toward high-performance and easy implementation. In this paper, then, we propose a Massive MIMO method with fully-digital BF based on two-tap precoding for low super high frequency (SHF) band downlink (DL) transmissions (called as Digital FBCP). Additionally, three intersite coordination algorithms for Digital FBCP are presented for multi-site environments and one of the three algorithms is enhanced. It is shown that Digital FBCP achieves better throughput performance than a conventional algorithm with one-tap precoding. Considering performance of intersite coordination as well, it is concluded that Digital FBCP can achieve around 5 Gbps in various practical environments.
Year
DOI
Venue
2019
10.1587/transcom.2018TTP0020
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
5G, low-SHF band, massive MIMO, multi-user MIMO, fully-digital beamforming, intersite coordination
Super high frequency,MIMO,Beamforming algorithm,Electronic engineering,Theoretical computer science,Mathematics
Journal
Volume
Issue
ISSN
E102B
8
0916-8516
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Shohei Yoshioka121.08
Satoshi Suyama247.18
Tatsuki Okuyama323.09
Jun Mashino41411.25
Yukihiko Okumura513633.89