Improving Code Diversity on Block-Fading Channels by Spatial Coupling

Najeeb ul Hassan, Michael Lentmaier, Iryna Andriyanova, Gerhard Fettweis

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

16 Citations (SciVal)
176 Downloads (Pure)

Abstract

Spatially coupled low-density parity-check (SC-LDPC) codes are considered for transmission over the block-fading channel. The diversity order of the SC-LDPC codes is studied using density evolution and simulation results. We demonstrate that the diversity order of the code can be increased, without lowering the code rate, by simply increasing the coupling parameter (memory) of a SC-LDPC code. For a (3,6)-regular SC-LDPC code with rate R = 1/2 and memory mcc = 4 a remarkable diversity of d = 10 is achieved without the need for any specific code structure. The memory of the SC-LDPC codes makes them robust against a non-stationary mobile-radio environment. The decoding of SC-LDPC codes using a latency constrained sliding window decoder is also considered.
Original languageEnglish
Title of host publication[Host publication title missing]
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Publication statusPublished - 2014
EventIEEE International Symposium on Information Theory (ISIT), 2014 - Honolulu, Hawaii, U.S.A., Honolulu, HI, United States
Duration: 2014 Jun 292014 Jul 4

Conference

ConferenceIEEE International Symposium on Information Theory (ISIT), 2014
Country/TerritoryUnited States
CityHonolulu, HI
Period2014/06/292014/07/04

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Spatial coupling
  • LDPC
  • block fading channel

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