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Wireless Personal Communications
Published in: Wireless Personal Communications 2/2018

30-05-2018

Efficient Hybrid Modulation/Demodulation Scheme Using Differential Encoding/Decoding for UWB-IR

Authors: Nayoung Lee, Jaeah Cha, Hyobeen Park, Young-Hwan You, Seongjoo Lee

Published in: Wireless Personal Communications | Issue 2/2018

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Abstract

An efficient hybrid modulation/demodulation scheme using a short duration pulse in the time-domain for ultra wideband-impulse radio (UWB-IR) systems is proposed. The proposed modulation scheme is pulse position modulation (PPM) of the UWB-IR standard modulation combined with differential encoding, and non-coherent energy detection (ED) adopting differential decoding is proposed for demodulation. Differential encoding makes a pulse that can transfer additive information bit into bits assigned in one symbol without increasing the symbol period. The BER performance is evaluated for 2-PPM, 4-PPM and the proposed HD-2PPM (which has the same symbol duration as BPPM and includes two information bits per symbol). The error performance indicates that the proposed scheme is an outstanding 0.5 dB over existing schemes of UWB-IR, and the data-rate performance shows that the proposed method has higher spectral efficiency than conventional methods that occupy the same duration as the proposed scheme.
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Metadata
Title
Efficient Hybrid Modulation/Demodulation Scheme Using Differential Encoding/Decoding for UWB-IR
Authors
Nayoung Lee
Jaeah Cha
Hyobeen Park
Young-Hwan You
Seongjoo Lee
Publication date
30-05-2018
Publisher
Springer US
Published in
Wireless Personal Communications / Issue 2/2018
Print ISSN: 0929-6212
Electronic ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-018-5860-9

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