Results 31 to 40 of about 995,967 (198)

A Low-Complexity Massive MIMO Precoding Algorithm Based on Chebyshev Iteration

IEEE Access, 2017
Precoding algorithm is used to transmit signals effectively and to reduce the interferences from other user terminals in the massive multiple-input-multiple-output (MIMO) systems. In order to decrease the computational complexity of the precoding matrix,
Chi Zhang, Zhengquan Li, Lianfeng Shen, Feng Yan, Ming Wu, Xiumin Wang   +5 more
doaj   +1 more source

On the performance of SU-MIMO and MU-MIMO in 3GPP LTE downlink [PDF]

, 2009
LTE (Long Term Evolution) is a next major step in mobile radio communications, and will be introduced as Release 8 in the 3rd Generation Partnership Project (3GPP). The new evolution aims to reduce delays, improve spectrum flexibility and reduce cost for
Beh, KC, Angela Doufexi, Doufexi, A, Armour, SMD, Simon Armour, Kian Chung Beh   +5 more
core   +1 more source

Energy-Efficient Zero-Forcing Precoding Design for Small-Cell Networks [PDF]

IEEE Transactions on Communications, 2016
We consider small-cell networks with multiple-antenna transceivers and base stations (BSs) cooperating to jointly design linear precoders to maximize the network energy efficiency, subject to a sum power and per-antenna power constraints at individual BSs, as well as user-specific quality of service (QoS) requirements.
Quang-Doanh Vu, Le-Nam Tran, Ronan Farrell, Een-Kee Hong   +3 more
openaire   +2 more sources

Statistical CSI-Based Downlink Precoding for Multi-Beam LEO Satellite Communications

Aerospace
With the rapid development of low-Earth-orbit (LEO) satellite communications, multi-beam precoding has emerged as a key technology for improving spectrum efficiency.
Feng Zhu, Yunfei Wang, Ziyu Xiang, Xiqi Gao   +3 more
doaj   +1 more source

A Low Sampling Rate Receiver Design for Multi-Antenna Multi-User OFDM Systems

Entropy, 2022
The future 6G mobile communication network will support an unprecedented amount of Internet of Things (IoT) devices, which will boost the demand for low cost terminals under the principle of green communication.
Zeliang Ou, Xiaofeng Liu, Hongwen Yang
doaj   +1 more source

Digital and analog hybrid precoding technology combined with V-BLAST in multi-user massive MIMO system

Dianxin kexue, 2016
In the massive MIMO system, the only full digital baseband precoding（FD-BP）scheme（such as full complexity zero forcing）requires the same number of radio frequency（RF）chains as the number of antenna elements, which leads to extreme high hardware cost, the
Shuai ZHANG, Jinlong ZHAN, Man WANG, Minjie LI   +3 more
doaj   +2 more sources

When Coproduction Meets Professionalism: Toward a Conceptual Framework for Understanding Challenges of Lay Input

Public Administration, EarlyView.
ABSTRACT Coproduction is an established element in public service provision, linked to positive outcomes such as increased service quality and quantity. Realizing these outcomes requires skills and motivation from street‐level professionals and lay actors alike.
Rikke Kolding
wiley   +1 more source

Hierarchical Energy Efficient Hybrid Precoding for Configurable Sub-Connected MIMO Systems

IEEE Access, 2021
This paper proposed a configurable sub-connected architecture with a framework that dynamically activates the near-optimal subset of antennas and RF chains to implement energy-efficient hybrid precoding in millimeter wave multiple-input multiple-output ...
Xiang Li, Yang Huang, Wei Heng, Jing Wu
doaj   +1 more source

Evaluation of multi‐user multiple‐input multiple‐output digital beamforming algorithms in B5G/6G low Earth orbit satellite systems

International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 17-33, January/February 2026.
In this paper, we investigate the application of signal‐to‐leakage‐plus‐noise ratio (SLNR) beamforming to low Earth orbit non‐terrestrial networks. The SLNR criterion aims at maximizing the received desired signal power for each user while minimizing the overall interference power caused by each user to all other co‐channel receivers. We show that such
M. Rabih Dakkak, Daniel Gaetano Riviello, Alessandro Guidotti, Alessandro Vanelli‐Coralli   +3 more
wiley   +1 more source

5G new radio multiuser precoding in geostationary satellite networks

International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 60-72, January/February 2026.
This work evaluates the standardized 5G new radio codebooks for closed‐loop multiuser precoding in GEO multibeam scenarios and derives a list of recommended 3GPP standard modifications for a proper support to GEO mission needs. Summary The multiuser precoding procedures standardized by the 3rd Generation Partnership Project (3GPP) for new radio (NR ...
Xavier Artiga, Miguel Ángel Vázquez
wiley   +1 more source