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Unequal Error Protection in Coded Slotted ALOHA

Ivanov, Mikhail and Brännström, Fredrik and Graell i Amat, Alexandre and Liva, Gianluigi (2016) Unequal Error Protection in Coded Slotted ALOHA. IEEE Wireless Communications Letters, 5 (5), pp. 536-539. IEEE - Institute of Electrical and Electronics Engineers. ISSN 2162-2337

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We analyze the performance of coded slotted ALOHA systems for a scenario where users have different error protection requirements and correspondingly can be divided into user classes. The main goal is to design the system so that the requirements for each class are satisfied. To that end, we derive analytical error floor approximations of the packet loss rate for each class in the finite frame length regime, as well as the density evolution in the asymptotic case. Based on this analysis, we propose a heuristic approach for the optimization of the degree distributions to provide the required unequal error protection. In addition, we analyze the decoding delay for users in different classes and show that better protected users experience a smaller average decoding delay.

Item URL in elib:https://elib.dlr.de/107290/
Document Type:Article
Title:Unequal Error Protection in Coded Slotted ALOHA
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ivanov, MikhailChalmers University of TechnologyUNSPECIFIED
Brännström, FredrikChalmers University of TechnologyUNSPECIFIED
Graell i Amat, AlexandreChalmers University of TechnologyUNSPECIFIED
Date:October 2016
Journal or Publication Title:IEEE Wireless Communications Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 536-539
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Optimization, Decoding, Error correction codes, Receivers, Delays, Packet loss
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: Liva, Dr. Gianluigi
Deposited On:17 Nov 2016 15:03
Last Modified:06 Sep 2019 15:23

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