Results 11 to 20 of about 668 (147)

Analisis Perbandingan Kinerja Ekualisasi Zero Forcing dan MMSE pada FBMC-OQAM

open access: yesJurnal Elkomika, 2019
ABSTRAK Kebutuhan layanan data pada teknologi 5G sangatlah tinggi. FBMC sebagai solusi dari kelemahan yang ada di OFDM menjadi teknologi yang digunakan pada komunikasi 5G.
JANS HENDRY, ANGGUN FITRIAN ISNAWATI
doaj   +1 more source

Novel Receive Antenna Selection Scheme for Precoding-Aided Spatial Modulation with Lattice Reduction

open access: yesSensors, 2022
In this paper, a new receive antenna subset (RAS) selection scheme is proposed for precoding-aided spatial modulation (PSM). First, a lattice reduction (LR)-based precoder is employed instead of a conventional zero-forcing (ZF) precoder.
Sangchoon Kim
doaj   +1 more source

OPTIMAL RELAY DESIGN OF ZERO FORCING EQUALIZATION FOR MIMO MULTI WIRELESS RELAYING NETWORKS

open access: yesJurnal Ilmiah Kursor: Menuju Solusi Teknologi Informasi, 2017
In  this  paper,  we develop  the  optimal  relay design  for  multiple-input multiple-output (MIMO)  multi wireless relaying networks,  when we consider  the problem of zero-forcing  processing  is studied  for multi-input multi- output  multi-relay ...
Apriana Toding
doaj   +1 more source

Large System Performance and Distributed Scheme of Downlink Beamforming in F-RANs With Distributed Antennas

open access: yesIEEE Access, 2019
This paper addresses the performance of downlink beamforming in fog radio access networks (F-RANs) with distributed antennas. The wireless channel is modeled as Rician fading.
Pengcheng Zhu   +3 more
doaj   +1 more source

Research on sphere decoders for rank-deficient MIMO systems

open access: yesDianzi Jishu Yingyong, 2018
Sphere decoder(SD) has variable complexity, and the traditional fixed-complexity sphere decoder(FSD) is not applicable for rank-deficient(NT>NR) multiple input multiple output(MIMO) systems.
Su Yan, Yang Meijun
doaj   +1 more source

Performance analysis of precoding-aided differential spatial modulation systems with transmit antenna selection

open access: yesETRI Journal, 2021
In this paper, the performance of precoding-aided differential spatial modulation (PDSM) systems with optimal transmit antenna subset (TAS) selection is examined analytically.
Sangchoon Kim
doaj   +1 more source

Capacity Analysis of Lattice Reduction Aided Equalizers for Massive MIMO Systems

open access: yesInformation, 2020
Massive multi-input-multi-output (MIMO) systems are the future of the communication system. The proper design of the MIMO system needs an appropriate choice of detection algorithms. At the same time, Lattice reduction (LR)-aided equalizers have been well
Samarendra Nath Sur   +4 more
doaj   +1 more source

Performance Analysis of Precoding Based on Massive MIMO System

open access: yesMATEC Web of Conferences, 2015
In order to improve the system performance, the authors consider a single-cell multiuser Massive MIMO downlink time-division duplex (TDD) system for the imperfect channel state information (CSI).
Li Yi, Wang Junxuan, Gao Zhenzhen
doaj   +1 more source

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

open access: yesAdvanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu   +5 more
wiley   +1 more source

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

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