A novel high spectral efficiency waveform coding-OVFDM

Author

Li Daoben

Author_Institution

Sch. of Inf. & Commun., Beijing Univ. of Posts & Telecomm, Beijing, China

Volume

12

Issue

2

fYear

2015

fDate

Feb. 2015

Firstpage

61

Lastpage

73

Abstract

Based on the Overlapped Multiplexing Principle, a frequency domain OVFDM (Overlapped Frequency Domain Multiplexing) Coding is proposed. By the data weighted shift overlapped version of any band-limited Multiplexing Transfer Function H(f) the coding gain and spectral efficiency are both achieved. The heavier the overlap of the data weighted Multiplexing Transfer Function H(f), the higher the coding gain and spectral efficiency as well as the closer the output to the optimum complex Gaussian distribution. The bit error probability performance is estimated. The time domain OVTDM (Overlapped Time Domain Multiplexing) Coding, the dual of OVFDM in time domain is incidentally proposed as well. Both theoretical analysis and testified simulations show that OVFDM (OVTDM) is suitable for high spectral efficiency application and its spectral efficiency is only roughly linear to SNR rather than the well-known logarithm to SNR.

Keywords

Gaussian distribution; OFDM modulation; error statistics; frequency-domain analysis; transfer functions; bit error probability; coding gain; complex Gaussian distribution; data weighted shift overlapped version; frequency domain OVFDM; high spectral efficiency waveform coding; multiplexing transfer function; overlapped frequency domain multiplexing; overlapped multiplexing principle; Channel coding; Frequency-domain analysis; Gaussian distribution; Multiplexing; Signal to noise ratio; Time-domain analysis; OVFDM; OVTDM; dual relation; frequency domain coding; overlapped multiplexing principle; shannon capacity; spectral efficiency; waveform coding;

fLanguage

English

Journal_Title

Communications, China

Publisher

ieee

ISSN

1673-5447

Type

jour

DOI

10.1109/CC.2015.7084402

Filename

7084402