Design and Prototyping of Error Resilient Multi-Server Video Streaming System with Inter-Stream FEC

Akihiro FUJIMOTO  Yusuke HIROTA  Hideki TODE  Koso MURAKAMI  

IEICE TRANSACTIONS on Communications   Vol.E96-B   No.7   pp.1826-1836
Publication Date: 2013/07/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E96.B.1826
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network
forward error correction,  Inter-Stream FEC,  parity stream,  content distribution network,  prototyping,  

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To establish seamless and highly robust content distribution, we proposed the new concept of Inter-Stream Forward Error Correction (FEC), an efficient data recovery method leveraging several video streams. Our previous research showed that Inter-Stream FEC had significant recovery capability compared with the conventional FEC method under ideal modeling conditions and assumptions. In this paper, we design the Inter-Stream FEC architecture in detail with a view to practical application. The functional requirements for practical feasibility are investigated, such as simplicity and flexibility. Further, the investigation clarifies a challenging problem: the increase in processing delay created by the asynchronous arrival of packets. To solve this problem, we propose a pragmatic parity stream construction method. We implement and evaluate experimentally a prototype system with Inter-Stream FEC. The results demonstrate that the proposed system could achieve high recovery performance in our experimental environment.