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Multistream faster than Nyquist signaling

Publiceringsår: 2009
Språk: Engelska
Sidor: 1329-1340
Publikation/Tidskrift/Serie: IEEE Transactions on Communications
Volym: 57
Nummer: 5
Dokumenttyp: Artikel i tidskrift
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.

Sammanfattning

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.

Nyckelord

  • Electrical Engineering, Electronic Engineering, Information Engineering
  • Multicarrier modulation
  • Faster-than-Nyquist signaling
  • OFDM

Övriga

Published
  • EIT_HSWC:Coding Coding, modulation, security and their implementation
  • Telecommunication Theory-lup-obsolete
  • Informations- och kommunikationsteori-lup-obsolete
  • ISSN: 0090-6778

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