scholarly journals Utility Maximization for Large-Scale Cell-Free Massive MIMO Downlink

2021 ◽  
pp. 1-1
Author(s):  
Muhammad Farooq ◽  
Hien Quoc Ngo ◽  
Een-Kee Hong ◽  
Le-Nam Tran
Keyword(s):  
Massive Mimo ◽  
Utility Maximization ◽  
Large Scale ◽  
Mimo Downlink

scholarly journals Research on 5G Millimeter Wave Channel Estimation Algorithm

2019 ◽  
pp. 74-77
Author(s):  
Xu Shuang
Keyword(s):  
Channel Estimation ◽  
Millimeter Wave ◽  
Massive Mimo ◽  
Large Scale ◽  
Low Frequency ◽  
Estimation Algorithm ◽  
Simulation Research ◽  
Wave Technology ◽  
Wave Channel ◽  
Mimo Technology

With the explosive growth in the number of communication users and the huge demand for data from users, Limited low-frequency resources have been far from being satisfied by users. The combination of Massive MIMO technology and millimeter-wave technology has brought new hope to users. In this paper, several basic algorithms are placed under the millimeter wave large-scale antenna channel for simulation research.

scholarly journals Analysis of One-Bit Quantized Precoding for the Multiuser Massive MIMO Downlink

2017 ◽  
Vol 65 (17) ◽  
pp. 4624-4634 ◽  
Author(s):  
Amodh Kant Saxena ◽  
Inbar Fijalkow ◽  
A. Lee Swindlehurst
Keyword(s):  
Massive Mimo ◽  
Mimo Downlink

Using a Sorted QR Decomposition Algorithm for Multiuser MIMO Downlink Transmission

2021 ◽  
Vol I (I) ◽  
Author(s):  
S Lakshmi Narayanan ◽  
Robert Theivadas J
Keyword(s):  
Bit Error Rate ◽  
Spectral Efficiency ◽  
Large Scale ◽  
Qr Decomposition ◽  
Decomposition Algorithm ◽  
Wireless Technology ◽  
Multiuser Mimo ◽  
Downlink Transmission ◽  
High Data ◽  
Mimo Downlink

MIMO is a wireless technology that uses large scale antennas to transfer more data at the same time and to increase spectral efficiency. To achieve high data rate with less bandwidth we use decomposition algorithm. Among various de-composition algorithm QR decomposition algorithm outperforms low bit error rate(BER), but the computational complexity is prohibitively high when the system incorporates large number of antennas. This paper presents a low computational sorted QR decomposition (SQRD) algorithm for MIMO.SQRD uses precoding technique at the transmitter which decomposes the channel that can sent in parallel.

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