Energy efficient time-modulated OFDM directional modulation transmitters

Jiayu Hou; Jayakrishnan Methapettyparambu Purushothama; Haijun Fan; Chaoyun Song; Yuan Ding; Mathini Sellathurai

doi:10.1002/mop.33438

Energy efficient time-modulated OFDM directional modulation transmitters

Jiayu Hou, Jayakrishnan Methapettyparambu Purushothama, Haijun Fan, Chaoyun Song, Yuan Ding^*, Mathini Sellathurai

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

47 Downloads (Pure)

Abstract

In this study, a reconfigurable power divider (RPD) enabled energy efficient direction modulation (DM) transmitter for orthogonal frequency division multiplexing (OFDM) modulated data transmission is proposed. The RPD can smartly select the output ports and operate as a power divider or a switch with appropriate control conditions. Hence, the RPD is able to recycle the energy in the ‘OFF’ state antennas, which is otherwise wasted in the conventional DM transmitter constructed using a fixed power divider and switches. It has been shown in a 4-element array example that the newly proposed RPD-based OFDM DM transmitter can provide 1.5–7.8 dB SNR gains (or in the other way, reducing power consumption by 1.5–7.8 dB) for different excitation strategies.

Original language	English
Pages (from-to)	5-13
Number of pages	9
Journal	Microwave and Optical Technology Letters
Volume	65
Issue number	1
Early online date	27 Aug 2022
DOIs	https://doi.org/10.1002/mop.33438
Publication status	Published - Jan 2023

Keywords

direction modulation (DM)
energy efficient
orthogonal frequency division multiplexing (OFDM)
reconfigurable power divider (RPD)
time modulated array (TMA)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "Energy efficient time-modulated OFDM directional modulation transmitters",

abstract = "In this study, a reconfigurable power divider (RPD) enabled energy efficient direction modulation (DM) transmitter for orthogonal frequency division multiplexing (OFDM) modulated data transmission is proposed. The RPD can smartly select the output ports and operate as a power divider or a switch with appropriate control conditions. Hence, the RPD is able to recycle the energy in the {\textquoteleft}OFF{\textquoteright} state antennas, which is otherwise wasted in the conventional DM transmitter constructed using a fixed power divider and switches. It has been shown in a 4-element array example that the newly proposed RPD-based OFDM DM transmitter can provide 1.5–7.8 dB SNR gains (or in the other way, reducing power consumption by 1.5–7.8 dB) for different excitation strategies.",

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note = "Funding Information: J. Hou, J. M. Purushothama, and Y. Ding acknowledge the Engineering and Physical Sciences Research Council (EPSRC), UK, under Grant number EP/V002635/1 for financial support. Publisher Copyright: {\textcopyright} 2022 The Authors. Microwave and Optical Technology Letters published by Wiley Periodicals LLC.",

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AU - Fan, Haijun

AU - Song, Chaoyun

AU - Ding, Yuan

AU - Sellathurai, Mathini

N1 - Funding Information: J. Hou, J. M. Purushothama, and Y. Ding acknowledge the Engineering and Physical Sciences Research Council (EPSRC), UK, under Grant number EP/V002635/1 for financial support. Publisher Copyright: © 2022 The Authors. Microwave and Optical Technology Letters published by Wiley Periodicals LLC.

PY - 2023/1

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N2 - In this study, a reconfigurable power divider (RPD) enabled energy efficient direction modulation (DM) transmitter for orthogonal frequency division multiplexing (OFDM) modulated data transmission is proposed. The RPD can smartly select the output ports and operate as a power divider or a switch with appropriate control conditions. Hence, the RPD is able to recycle the energy in the ‘OFF’ state antennas, which is otherwise wasted in the conventional DM transmitter constructed using a fixed power divider and switches. It has been shown in a 4-element array example that the newly proposed RPD-based OFDM DM transmitter can provide 1.5–7.8 dB SNR gains (or in the other way, reducing power consumption by 1.5–7.8 dB) for different excitation strategies.

AB - In this study, a reconfigurable power divider (RPD) enabled energy efficient direction modulation (DM) transmitter for orthogonal frequency division multiplexing (OFDM) modulated data transmission is proposed. The RPD can smartly select the output ports and operate as a power divider or a switch with appropriate control conditions. Hence, the RPD is able to recycle the energy in the ‘OFF’ state antennas, which is otherwise wasted in the conventional DM transmitter constructed using a fixed power divider and switches. It has been shown in a 4-element array example that the newly proposed RPD-based OFDM DM transmitter can provide 1.5–7.8 dB SNR gains (or in the other way, reducing power consumption by 1.5–7.8 dB) for different excitation strategies.

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KW - energy efficient

KW - orthogonal frequency division multiplexing (OFDM)

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KW - time modulated array (TMA)

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Energy efficient time-modulated OFDM directional modulation transmitters

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Keywords

ASJC Scopus subject areas

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