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Journal Article Graceful Degradation FEC Layer for Multimedia Broadcast/Multicast Service in LTE Mobile Systems
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Authors
Seok Ho Won
Issue Date
2013-12
Citation
ETRI Journal, v.35, no.6, pp.1068-1074
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.13.0113.0486
Project Code
13PI1500, Development of Basic Technology of Centralized and Distributed Networks for Next Generation Wireless Access, Bang Seung Chan
Abstract
This paper proposes an additional forward error correction (FEC) layer to compensate for the defectiveness inherent in the conventional FEC layer in the Long Term Evolution specifications. The proposed additional layer is called a graceful degradation (GD)-FEC layer and maintains desirable service quality even under burst data loss conditions of a few seconds. This paper also proposes a non-delayed decoding (NDD)-GD-FEC layer that is inherent in the decoding process. Computer simulations and device-based tests show a better loss recovery performance with a negligible increase in CPU utilization and occupied memory size. © 2013 ETRI.
KSP Keywords
Burst data, CPU Utilization, Computer simulation(MC and MD), Data loss, Forward error correction(FEC), Long term Evolution(LTE), Memory size, Mobile system, Multimedia Broadcast Multicast Service(MBMS), Recovery performance, Service Quality