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Multistream faster than Nyquist signaling

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Author

Summary, in English

We extend Mazo's concept of faster-than-Nyquist (FTN) signaling to pulse

trains that modulate a bank of subcarriers, a method called two dimensional

FTN signaling. The signal processing is similar to orthogonal frequency

division multiplex (OFDM) transmission but the subchannels are

not orthogonal. Despite nonorthogonal pulses and subcarriers, the method

achieves the isolated-pulse error performance; it does so in as little as half the bandwidth of ordinary OFDM. Euclidean distance properties are

investigated for schemes based on several basic pulses. The best have Gaussian shape. An efficient distance calculation is given. Concatenations of ordinary codes and FTN are introduced. The combination achieves the

outer code gain in as little as half the bandwidth. Receivers must

work in two dimensions, and several iterative designs

are proposed for FTN with outer convolutional coding.

Publishing year

2009

Language

English

Pages

1329-1340

Publication/Series

IEEE Transactions on Communications

Volume

57

Issue

5

Document type

Journal article

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Multicarrier modulation
  • Faster-than-Nyquist signaling
  • OFDM

Status

Published

Project

  • EIT_HSWC:Coding Coding, modulation, security and their implementation

Research group

  • Telecommunication Theory
  • Informations- och kommunikationsteori

ISBN/ISSN/Other

  • ISSN: 0090-6778