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Protograph EXIT Analysis over Block Fading Channels with Application to Relays

Pulini, Paola and Liva, Gianluigi and Chiani, Marco (2012) Protograph EXIT Analysis over Block Fading Channels with Application to Relays. IEEE ICC 2012, 10 Jun - 15 Jun 2012, Ottawa, Canada.

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Abstract

An accurate extrinsic information transfer (EXIT) analysis is developed for protograph low-density parity-check (LDPC) codes over the block fading channel (BFC). The analysis is thus exploited for analyzing the behavior of distributed protograph LDPC ensembles over block fading relay channels. A novel protograph-based construction of low-density parity-check (LDPC) codes for the relay channel is proposed, which provides an enhanced unequal error protection (named unequal diversity, UD) property. The focus is on quasi-static fading channels and on the high-code-rate (R > 1/2) regimes, for which (according to the Singleton bound) no full diversity can be achieved. In the proposed construction, some nodes (and the corresponding codeword fragments) associated with the code graph enjoy the diversity provided by the relay, whereas the remaining nodes do not experience any diversity. The proposed approach can be thus tailored

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Protograph EXIT Analysis over Block Fading Channels with Application to Relays
Authors:
AuthorsInstitution or Email of Authors
Pulini, PaolaDLR
Liva, GianluigiDLR
Chiani, MarcoUniv. Bologna
Date:10 June 2012
Refereed publication:Yes
In ISI Web of Science:No
Status:Published
Keywords:Protograph EXIT analysis, block fading channels, coded cooperation, relays
Event Title:IEEE ICC 2012
Event Location:Ottawa, Canada
Event Type:international Conference
Event Dates:10 Jun - 15 Jun 2012
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:ATM and Operation
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Communication, Navigation and Surveillance
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: Paola Pulini
Deposited On:11 Jun 2012 08:18
Last Modified:06 Feb 2013 09:32

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