Results 41 to 50 of about 184,691 (254)

Multiuser MIMO-OFDM systems using subcarrier hopping [PDF]

open access: yesIEE Proceedings - Communications, 2006
Recently space division multiple access (SDMA) assisted multiple-input–multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems invoking multiuser detection (MUD) techniques have attracted substantial research interest, which is capable of exploiting both transmitter multiplexing gain and receiver diversity gain.
Jiang, M, Hanzo, L
openaire   +2 more sources

Optimal Multiuser Diversity in Multi-Cell MIMO Uplink Networks: User Scaling Law and Beamforming Design

open access: yesEntropy, 2017
We introduce a distributed protocol to achieve multiuser diversity in a multicell multiple-input multiple-output (MIMO) uplink network, referred to as a MIMO interfering multiple-access channel (IMAC).
Bang Chul Jung   +3 more
doaj   +1 more source

Robust Linear MIMO in the Downlink: A Worst-Case Optimization with Ellipsoidal Uncertainty Regions

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
This paper addresses the joint robust power control and beamforming design of a linear multiuser multiple-input multiple-output (MIMO) antenna system in the downlink where users are subjected to individual signal-to-interference-plus-noise ratio (SINR ...
Tung-Sang Ng, Kai-Kit Wong, Gan Zheng
doaj   +1 more source

Tomlinson-Harashima Precoding for Multiuser MIMO Systems with Quantized CSI Feedback and User Scheduling [PDF]

open access: yes, 2014
This paper studies the sum rate performance of a low complexity quantized CSI-based Tomlinson-Harashima (TH) precoding scheme for downlink multiuser MIMO tansmission, employing greedy user selection.
McKay, Matthew R., Sun, Liang
core   +2 more sources

Performance Analysis of NOMA in Training-Based Multiuser MIMO Systems [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2017
This paper considers the use of non-orthogonal-multiple-access (NOMA) in multiuser MIMO systems in practical scenarios where channel state information (CSI) is acquired through pilot signaling.
Hei Victor Cheng   +2 more
semanticscholar   +1 more source

Model-Driven Deep Learning for Massive Multiuser MIMO Constant Envelope Precoding [PDF]

open access: yesIEEE Wireless Communications Letters, 2020
Constant envelope (CE) precoding design is of great interest for massive multiuser multi-input multi-output systems because it can significantly reduce hardware cost and power consumption.
Yunfeng He   +3 more
semanticscholar   +1 more source

Adaptive Hybrid Precoding for Multiuser Massive MIMO [PDF]

open access: yesIEEE Communications Letters, 2016
Hybrid precoding (HP) is widely utilized in millimeter wave-based massive MIMO systems with significantly reduced radio frequency (RF) chains, but it requires a large number of analog phase shifters (APSs) and RF adders to realize the connection between RF chains and antenna elements.
Zhu, Xudong   +3 more
openaire   +3 more sources

Novel Leakage-Based Capacity Enhancement Scheme for Multi-User OAM Communications

open access: yesIEEE Access
This paper explores a novel leakage-based capacity enhancement scheme in an orbital angular momentum (OAM) integrated multiuser MIMO system, where the leakage refers to the signal interference affecting other users.
Aye Yadanar Win   +2 more
doaj   +1 more source

Space–Time Line Code for Massive MIMO and Multiuser Systems With Antenna Allocation

open access: yesIEEE Access, 2018
This paper first investigates an M-by-2 massive multiple-input multiple-output (MIMO) system that transmits a single stream is investigated. For this system, we propose a space-time line code (STLC), which is a transmitting and combining (at a receiver ...
Jingon Joung
doaj   +1 more source

Convolutional-Neural-Network-Based Detection Algorithm for Uplink Multiuser Massive MIMO Systems

open access: yesIEEE Access, 2020
In the coming 6th generation (6G) and beyond in wireless communication, an increasing number of ultrascale intelligent factors, including mobile robot users and smart cars, will result in interference exploitation.
Lin Li, Huijun Hou, Weixiao Meng
doaj   +1 more source

Home - About - Disclaimer - Privacy