Turbo-coded optical PPM communication systems

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

In this paper, a number of parallel concatenated convolutionally coded (PCCC) photon communication systems is introduced and investigated. It is assumed that the optical channel is an intensity modulated (IM) channel and that the received optical signal is detected using a direct-detection (DD) scheme. Two modes of operation are considered. In one scenario, it is assumed that the receiver is limited by shot noise (i.e., negligible receiver thermal noise, or Poisson channel). In the other case, we consider a nonnegligible receiver thermal noise where an avalanche photodetector (APD) is employed to detect the received optical signal. It is also considered that the modulation scheme is the binary pulse-position modulation (PPM). With the aid of the best available upper bounds, the performance of the rate 1/n PCCC encoded optical PPM systems is assessed in terms of the upper bound on the system bit error rate (BER) for the shot-noise-limited IM/DD systems with nonnegligible background noise and for the thermal-noise-limited systems with APD detectors when a uniform interleaver is used. Numerical results for the rate 1/3 PCCC encoded PPM channels are presented. The numerical results demonstrate the enormous potential of this novel coding scheme in enhancing the performance of the aforementioned optical channels by a sizeable margin across the board.

Original languageEnglish
Pages (from-to)18-26
Number of pages9
JournalJournal of Lightwave Technology
Volume16
Issue number1
DOIs
Publication statusPublished - 1998 Jan
Externally publishedYes

Fingerprint

pulse position modulation
Pulse position modulation
Thermal noise
telecommunication
Laser pulses
Communication systems
Shot noise
Photodetectors
thermal noise
receivers
shot noise
avalanches
photometers
optical communication
Bit error rate
Photons
Modulation
Detectors
background noise
bit error rate

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

Turbo-coded optical PPM communication systems. / Ohtsuki, Tomoaki.

In: Journal of Lightwave Technology, Vol. 16, No. 1, 01.1998, p. 18-26.

Research output: Contribution to journalArticle

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