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LDPC Code Performance and Optimum Code Rate for Contention Resolution Diversity ALOHA

Kissling, Christian and Clazzer, Federico (2013) LDPC Code Performance and Optimum Code Rate for Contention Resolution Diversity ALOHA. In: Global Communication Conference (GLOBECOM) (ISSN: 0090-6778). Global Communications Conference (GLOBECOM) 2013, 9-13 Dec 2013, Atlanta, GA, USA. ISSN 0090-6778

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Abstract

In this paper we investigate several central aspects of using the unslotted Contention Resolution Diversity ALOHA (CRA) scheme with Successive Interference Cancellation (SIC). A model for the co-user-interference under consideration of time-, phase- and frequency-offsets is presented. With this model, the throughput and Packet Loss Rates (PLR) performance of CRA is investigated when using LDPC codes, showing that CRA can achieve remarkable performance also in these conditions. Moreover, the throughput and PLR gain of CRA in presence of power unbalance is studied, showing that significant gains can be expected. Finally the central questions is answered which channel rates optimize the goodput of CRA, showing that for CRA with few replicas a low, robust channel rate achieves optimum while for high numbers of replicas a high channel rate performs optimum. Finally an investigation of the interference distribution of an asynchronous TDMA scheme with replicas and the SIC operations in it are shown.

Item URL in elib:https://elib.dlr.de/88161/
Document Type:Conference or Workshop Item (Speech)
Title:LDPC Code Performance and Optimum Code Rate for Contention Resolution Diversity ALOHA
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kissling, Christianchristian.kissling (at) dlr.deUNSPECIFIED
Clazzer, Federicofederico.clazzer (at) dlr.deUNSPECIFIED
Date:11 December 2013
Journal or Publication Title:Global Communication Conference (GLOBECOM) (ISSN: 0090-6778)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
ISSN:0090-6778
Status:Published
Keywords:Random Access, MAC, SIC, Aloha, LDPC
Event Title:Global Communications Conference (GLOBECOM) 2013
Event Location:Atlanta, GA, USA
Event Type:international Conference
Event Dates:9-13 Dec 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Multimedia Satellitennetze
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Satellite Networks
Deposited By: Clazzer, Federico
Deposited On:10 Mar 2014 09:13
Last Modified:09 Feb 2017 19:20

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