Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Performance Analysis on Eigenmode Beamforming for Reduced Capability Device in Massive MIMO Systemsopen access

Authors
Min, KyungsikKim, Taehyoung
Issue Date
Mar-2023
Publisher
Institute of Electrical and Electronics Engineers Inc.
Keywords
Array signal processing; Training; Downlink; Uplink; Signal to noise ratio; Massive MIMO; Interference; 5G mobile communication; 5G; NR; RedCap; eigenmode beamforming; massive MIMO
Citation
IEEE Access, v.11, pp 13103 - 13112
Pages
10
Journal Title
IEEE Access
Volume
11
Start Page
13103
End Page
13112
URI
https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/22445
DOI
10.1109/ACCESS.2023.3242865
ISSN
2169-3536
Abstract
Recently, a new type of device that enables reduced capability (RedCap) has been identified and standardized in the fifth generation (5G) New Radio (NR). Because RedCap user equipment (UE) is designed to have low device cost and complexity compared with high-end devices, single-layer transmission is mainly considered for RedCap UE. For single-layer transmission, traditional eigenmode beamforming, which transmits a data stream through the maximum eigenmode direction, is applicable for base stations (BSs), and a simple matched filter can be used on the UE side. Under this operation scenario, the performance of eigenmode beamforming is analyzed in this study, and the effect of the number of UE antennas on the achievable rate is investigated. The asymptotic achievable rate for eigenmode beamforming with practical channel training for both the uplink and downlink is derived as a closed-form expression for any number of UE antennas n. For the analysis, the statistics of the maximum eigenvalue are derived using the Tracy-Widomdistribution. The results of the analysis show that the maximum eigenvalue is a concave function in termsofn, and there is an optimal number of UE antennas n(opt) that maximizes the achievable rate. Simulationsverify the analytical results and show that n(opt )maximizing the achievable rate decreases as the numbers ofBS antennas and co-scheduled UEs increase.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > Department of Information and Communication Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Altmetrics

Total Views & Downloads

BROWSE