Open AccessGraceful Degradation FEC Layer for Multimedia Broadcast/Multicast Service in LTE Mobile Systems
Author(s) -
Won Seok Ho
Publication year - 2013
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.13.0113.0486
Subject(s) - computer science , forward error correction , multicast , decoding methods , degradation (telecommunications) , computer network , layer (electronics) , error detection and correction , application layer , physical layer , service (business) , telecommunications , algorithm , wireless , operating system , materials science , software deployment , composite material , economy , economics
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.