Results 41 to 50 of about 7,177,543 (330)

Generalized Code Index Modulation and Spatial Modulation for High Rate and Energy-Efficient MIMO Systems on Rayleigh Block-Fading Channel

open access: yesIEEE Systems Journal, 2020
In this article, a high data rate and energy-efficient multiple-input multiple-output transmission scheme is considered by combining two popular and rational modulation techniques: spatial modulation (SM) and code index modulation-spread spectrum (CIM-SS)
Fatih Cogen   +4 more
semanticscholar   +1 more source

Spatial modulation: theory to practice [PDF]

open access: yes, 2014
Spatial modulation (SM) is a transmission technique proposed for multiple–input multiple– output (MIMO) systems, where only one transmit antenna is active at a time, offering an increase in the spectral efficiency equal to the base–two logarithm of the
Younis, Abdelhamid
core   +3 more sources

Spatial modulation of fast antenna switch

open access: yesDianzi Jishu Yingyong, 2018
A fast switching spatial modulation scheme is proposed to improve the secrecy performance of the spatial modulation signal. The signal is a space-spread-spectrum signal associated with the channel information because of fast antenna switch.
Geng Fei, Hong Tao
doaj   +1 more source

A Survey on Spatial Modulation OFDM: Optimal Detection and Performance Analysis

open access: yesENP Engineering Science Journal, 2023
Spatial modulation is a novel modulation scheme that aims to acquire a trade-off between the two adverse purposes in wireless communications, namely the improvements of data rate and data reliability, by adjusting the operational transmit antenna index ...
Fadila BERRAHMA   +2 more
doaj   +1 more source

IMToolkit: An Open-Source Index Modulation Toolkit for Reproducible Research Based on Massively Parallel Algorithms

open access: yesIEEE Access, 2019
This paper presents a proposal of an open-source index modulation (IM) toolkit, which facilitates reproducible research and accelerates open innovation in IM studies.
Naoki Ishikawa
doaj   +1 more source

Detection of Spatial-Modulated Signals in the Presence of CSI Uncertainty and Spatially- and Time-Selective Fading

open access: yesIEEE Access, 2022
Although the channel state information (CSI) is never perfect and varies in time, most studies on spatial modulation (SM) systems assume perfectly known CSI and time-invariant channel.
Hsuan-Cheng Chang   +2 more
doaj   +1 more source

Reduced-RF-Chain Aided Soft-Decision Multi-Set Steered Space-Time Shift-Keying for Millimeter-Wave Communications

open access: yesIEEE Access, 2017
Soft-decision-aided multi-set steered space-time shift keying intrinsically amalgamated with channel coding is proposed in order to attain near capacity-performance.
Ibrahim A. Hemadeh   +4 more
doaj   +1 more source

An Intelligent Target Feature Recognition Method Based on Multi-mode OAM Beams

open access: yesLeida xuebao, 2021
Target detection based on space modulation requires a large number of test modes with space-time independence. The Orbital Angular Momentum (OAM) beams are orthogonal to each other and have infinite modes.
Ningning ZHOU   +4 more
doaj   +1 more source

Space-Time Block Coded Spatial Modulation for Indoor Visible Light Communications

open access: yesIEEE Photonics Journal, 2022
Visible light communication (VLC) has been recognized as a promising technology for handling the continuously increasing quality of service and connectivity requirements in modern wireless communications, particularly in indoor scenarios. In this context,
Shimaa Naser   +5 more
doaj   +1 more source

Joint Transmitter–Receiver Spatial Modulation

open access: yesIEEE Access, 2018
We propose and investigate a joint transmitter-receiver spatial modulation (JSM) scheme, which transmits information by jointly exploiting the indices of transmit antenna patterns, the indices of receiver antennas, and amplitude-phase modulation.
Chaowen Liu   +3 more
doaj   +1 more source

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