Reliability Analysis of a Convolutional-Code-Based Packet Level FEC under Limited Buffer Size

Masayuki ARAI  Satoshi FUKUMOTO  Kazuhiko IWASAKI  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E88-A   No.4   pp.1047-1054
Publication Date: 2005/04/01
Online ISSN: 
DOI: 10.1093/ietfec/e88-a.4.1047
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: Reliability, Maintainability and Safety Analysis
Keyword: 
reliability analysis,  evaluation model,  convolutional code,  packet loss,  forward error correction,  packet buffer size,  

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Summary: 
In this paper, we present a model for evaluating the effectiveness of (2, 1, m) convolutional-code-based packet-level FEC, under the condition of a limited buffer size in which the number of available packets is restricted for recovery. We analytically derive the post-reconstruction receiving rate, i.e., the probability that a lost packet is received or recovered before the buffer limit is reached. We show numerical examples of the analytical results and demonstrate that the buffer size at the same level as m gives sufficient recovery performance.