BER Reduction for PSK-Based MM-OFDM-BIM with Two-Level Symbol Power

Phase-shift keying (PSK)-based multi-mode orthogonal frequency division multiplexing with block-wise index modulation (MM-OFDM-BIM) has been proposed as a novel OFDM-IM technique with adjustable-reliability transmission and low detection complexity. Although the phase normalization for PSK can reduc...

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Bibliographic Details
Published in2020 22nd International Conference on Advanced Communication Technology (ICACT) pp. 104 - 108
Main Authors Cho, Li, Chuang, Meng-Fan, Fu, Sheng-Hsiang, Hsu, Chau-Yun
Format Conference Proceeding
LanguageEnglish
Published Global IT Research Institute - GIRI 01.02.2020
Subjects
Bit error rate
Complexity theory
Constellation design
Convolution code
Discrete Fourier transforms
Index modulation
Indexes
Multiple-mode OFDM
OFDM
Phase shift keying
Signal to noise ratio
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Summary:Phase-shift keying (PSK)-based multi-mode orthogonal frequency division multiplexing with block-wise index modulation (MM-OFDM-BIM) has been proposed as a novel OFDM-IM technique with adjustable-reliability transmission and low detection complexity. Although the phase normalization for PSK can reduce the complexity of the index modulation (IM) detection, the essence of constant symbol power of PSK limits its bit error rate (BER) performance. We propose a new constellation design to reallocate the original symbols into two-level power for PSK-based MM-OFDM-BIM while retaining the merit of phase normalization. By adopting the optimum power parameter, the numerical results demonstrate that the proposed scheme can effectively improve BER performance without increasing computational complexity.
ISSN:1738-9445
DOI:10.23919/ICACT48636.2020.9061377