Results 21 to 30 of about 6,942,383 (265)

Energy-Efficient Index Modulation With In-Phase/Quadrature Format in the Generalized Fading Channel

open access: yesIEEE Access, 2021
Dual-mode (DM) or multi-mode (MM) index modulation (IM) techniques with the in-phase/quadrature (IQ) format have been investigated for improving the performance of the orthogonal frequency division multiplexing with IM (OFDM-IM) system in the frequency ...
Mengyi Wang, Zhihui Chen, Zhenxing Chen
doaj   +1 more source

Modulation of genetic associations with serum urate levels by body-mass-index in humans [PDF]

open access: yes, 2015
We tested for interactions between body mass index (BMI) and common genetic variants affecting serum urate levels, genome-wide, in up to 42569 participants.
Döring, Angela   +999 more
core   +3 more sources

A Random Subcarrier-Selection Method Based on Index Modulation for Secure Transmission

open access: yesSensors, 2022
Recently, a frequency diverse array (FDA) has been employed in an orthogonal frequency division multiplexing (OFDM) transmitter to achieve secure wireless communication without mathematical encryption.
Tao Zhan   +3 more
doaj   +1 more source

A Novel Index Modulation Dimension based on Filter Domain: Filter Shapes Index Modulation

open access: yes, 2021
International audienceA novel domain for Index Modulation (IM) named "Filter Domain" is proposed. This new domain generalizes many existing modulations and IM domains. In addition, a novel scheme "Filter Shape Index Modulation" (FSIM) is proposed.
Saad, Majed   +4 more
core   +1 more source

Pulse index modulation [PDF]

open access: yes, 2021
*Çelik, Yasin ( Aksaray, Yazar )Emerging systems such as Internet-of-things (IoT) and machine-to-machine (M2M) communications have strict requirements on the power consumption of used equipments and associated complexity in the transceiver design.
Çelik, Yasin   +6 more
core   +1 more source

Enhanced Optical-OFDM With Index and Dual-Mode Modulation for Optical Wireless Systems

open access: yesIEEE Access, 2020
In this article, we introduce intensity modulation and direct detection compatible enhanced optical-orthogonal frequency division multiplexing with index modulation (EO-OFDM-IM) schemes.
Ali Waqar Azim   +3 more
doaj   +1 more source

DCT-OFDM with Index Modulation [PDF]

open access: yes, 2017
International audienceIn this letter, index modulation (IM) is proposed for OFDM systems based on a discrete cosine transform (DCT) implementation. The new DCT-OFDM-IM scheme is shown to yield spectral efficiency improvements of up to 38% relative to ...
Coon, Justin   +12 more
core   +1 more source

Design of OFDM-IM system based on IRS-assisted

open access: yesDianxin kexue, 2023
Index modulation (IM) and intelligent reflecting surface (IRS) are emerging mobile communication technologies.In order to improve the reliability of traditional orthogonal frequency division multiplexing (OFDM) system, an orthogonal frequency division ...
Mengmeng ZHAO, Liming HE, Fangfang LIU
doaj   +2 more sources

In-phase and quadrature filter shape index modulation

open access: yesEURASIP Journal on Wireless Communications and Networking, 2023
This paper proposes a novel modulation scheme called “In Phase and Quadrature-Filter Shape Index Modulation” (IQ-FSIM). It aims to enhance the spectral/energy efficiencies (SE/EE) while generalizing several existing modulations and index modulation (IM ...
Majed Saad   +4 more
doaj   +1 more source

Index Modulation for Modulation on Conjugate-Reciprocal Zeros (IM-MOCZ)

open access: yesIEEE Wireless Communications Letters
5 pages, 8 figures; Revised to address reviewer ...
Aidan Corbett, Ebrahim Bedeer
openaire   +2 more sources

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