Results 31 to 40 of about 606,523 (279)

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

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

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

Maximum likelihood detection for differential unitary space-time modulation with carrier frequency offset [PDF]

open access: yes, 2007
Can conventional differential unitary space time modulation (DUSTM) be applied when there is an unknown carrier frequency offset (CFO)? This paper answers this question affirmatively and derives the necessary maximum likelihood (ML) detection rule.
Cui, Tao   +3 more
core   +2 more sources

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

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

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

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

Compressed Sensing-Aided Index Modulation Improves Space-Time Shift Keying Assisted Millimeter-Wave Communications

open access: yesIEEE Access, 2018
In this treatise, we present the concept of compressed-sensing (CS)-aided space-time shift keying index modulation (STSK-IM), where a virtual domain orthogonal frequency division multiplexing (OFDM) symbol is divided into Na-sized blocks, which carry K ...
Ibrahim A. Hemadeh   +3 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

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