Differential turbo-coded modulation with APP channel estimation

Sheryl L Howard, Christian Schlegel

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

A serially concatenated coding system which can operate without channel state information (CSI) with use of a simple channel-estimation technique is presented. This channel-estimation technique uses the inner decoder's a posteriori probability (APP) information about the transmitted symbols to form a channel estimate for each symbol interval, and is termed "APP channel estimation." The serially concatenated code is comprised of an outer rate-2/3 binary error-control code, separated by a bit interleaver from an inner code consisting of an 8-phase-shift keying (PSK) bit mapping and differential 8-PSK modulation. Coherent decoding provides bit-error rate performance 0.6 dB from 8-PSK capacity for large interleaver sizes. APP channel-estimation decoding without initial CSI over constant and random walk phase models shows near-coherent results, with fractions of a decibel performance loss for random walk and linear phase models.

Original languageEnglish (US)
Pages (from-to)1397-1406
Number of pages10
JournalIEEE Transactions on Communications
Volume54
Issue number8
DOIs
StatePublished - Aug 2006
Externally publishedYes

Fingerprint

Channel estimation
Phase shift keying
Modulation
Channel state information
Decoding
Concatenated codes
Bit error rate

Keywords

  • Channel phase estimation
  • Differential modulation
  • Iterative decoding
  • Serially concatenated codes (SCCs)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Differential turbo-coded modulation with APP channel estimation. / Howard, Sheryl L; Schlegel, Christian.

In: IEEE Transactions on Communications, Vol. 54, No. 8, 08.2006, p. 1397-1406.

Research output: Contribution to journalArticle

@article{ff6df73412354fe191a68ede01b620fb,
title = "Differential turbo-coded modulation with APP channel estimation",
abstract = "A serially concatenated coding system which can operate without channel state information (CSI) with use of a simple channel-estimation technique is presented. This channel-estimation technique uses the inner decoder's a posteriori probability (APP) information about the transmitted symbols to form a channel estimate for each symbol interval, and is termed {"}APP channel estimation.{"} The serially concatenated code is comprised of an outer rate-2/3 binary error-control code, separated by a bit interleaver from an inner code consisting of an 8-phase-shift keying (PSK) bit mapping and differential 8-PSK modulation. Coherent decoding provides bit-error rate performance 0.6 dB from 8-PSK capacity for large interleaver sizes. APP channel-estimation decoding without initial CSI over constant and random walk phase models shows near-coherent results, with fractions of a decibel performance loss for random walk and linear phase models.",
keywords = "Channel phase estimation, Differential modulation, Iterative decoding, Serially concatenated codes (SCCs)",
author = "Howard, {Sheryl L} and Christian Schlegel",
year = "2006",
month = "8",
doi = "10.1109/TCOMM.2006.878827",
language = "English (US)",
volume = "54",
pages = "1397--1406",
journal = "IEEE Transactions on Communications",
issn = "0096-1965",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "8",

}

TY - JOUR

T1 - Differential turbo-coded modulation with APP channel estimation

AU - Howard, Sheryl L

AU - Schlegel, Christian

PY - 2006/8

Y1 - 2006/8

N2 - A serially concatenated coding system which can operate without channel state information (CSI) with use of a simple channel-estimation technique is presented. This channel-estimation technique uses the inner decoder's a posteriori probability (APP) information about the transmitted symbols to form a channel estimate for each symbol interval, and is termed "APP channel estimation." The serially concatenated code is comprised of an outer rate-2/3 binary error-control code, separated by a bit interleaver from an inner code consisting of an 8-phase-shift keying (PSK) bit mapping and differential 8-PSK modulation. Coherent decoding provides bit-error rate performance 0.6 dB from 8-PSK capacity for large interleaver sizes. APP channel-estimation decoding without initial CSI over constant and random walk phase models shows near-coherent results, with fractions of a decibel performance loss for random walk and linear phase models.

AB - A serially concatenated coding system which can operate without channel state information (CSI) with use of a simple channel-estimation technique is presented. This channel-estimation technique uses the inner decoder's a posteriori probability (APP) information about the transmitted symbols to form a channel estimate for each symbol interval, and is termed "APP channel estimation." The serially concatenated code is comprised of an outer rate-2/3 binary error-control code, separated by a bit interleaver from an inner code consisting of an 8-phase-shift keying (PSK) bit mapping and differential 8-PSK modulation. Coherent decoding provides bit-error rate performance 0.6 dB from 8-PSK capacity for large interleaver sizes. APP channel-estimation decoding without initial CSI over constant and random walk phase models shows near-coherent results, with fractions of a decibel performance loss for random walk and linear phase models.

KW - Channel phase estimation

KW - Differential modulation

KW - Iterative decoding

KW - Serially concatenated codes (SCCs)

UR - http://www.scopus.com/inward/record.url?scp=33747814805&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33747814805&partnerID=8YFLogxK

U2 - 10.1109/TCOMM.2006.878827

DO - 10.1109/TCOMM.2006.878827

M3 - Article

VL - 54

SP - 1397

EP - 1406

JO - IEEE Transactions on Communications

JF - IEEE Transactions on Communications

SN - 0096-1965

IS - 8

ER -