Detection/decoding over channels with synchronization errors and inter-symbol interference

Feng Wang, Tolga M. Duman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We consider coding schemes over an independent and identically distributed (i.i.d.) insertion/deletion channel with inter-symbol interference (ISI). The idea is based on a serial concatenation of a low-density parity check (LDPC) code with a marker code. First, we design a maximum-a-posteriori (MAP) detector operating at the bit level which jointly achieves synchronization for the insertion/deletion channel (with the help of the marker code) and equalization for the ISI channel. Utilizing this MAP detector together with an LDPC code with powerful error-correction capabilities, we demonstrate that reliable transmission over this channel is feasible. Then, we consider low-complexity channel detection algorithms needed for proper synchronization/equalization. Specifically, we use separate synchronization and equalization algorithms instead of joint detection and also explore the performance of M- and T-algorithms implemented as low complexity soft output channel detectors. Such schemes greatly reduce the amount of computations needed at the cost of some performance loss as illustrated via a set of simulation results.

Original languageEnglish (US)
Title of host publication2012 IEEE International Conference on Communications, ICC 2012
Pages3826-3830
Number of pages5
DOIs
StatePublished - Dec 1 2012
Event2012 IEEE International Conference on Communications, ICC 2012 - Ottawa, ON, Canada
Duration: Jun 10 2012Jun 15 2012

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607

Other

Other2012 IEEE International Conference on Communications, ICC 2012
CountryCanada
CityOttawa, ON
Period6/10/126/15/12

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Detection/decoding over channels with synchronization errors and inter-symbol interference'. Together they form a unique fingerprint.

Cite this