Network Coding Advantage over MDS Codes for Multimedia Transmission via Erasure Satellite Channels

  • Paresh Saxena
  • M. A. Vázquez-Castro
Conference paper

DOI: 10.1007/978-3-319-02762-3_18

Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 123)
Cite this paper as:
Saxena P., Vázquez-Castro M.A. (2013) Network Coding Advantage over MDS Codes for Multimedia Transmission via Erasure Satellite Channels. In: Dhaou R., Beylot AL., Montpetit MJ., Lucani D., Mucchi L. (eds) Personal Satellite Services. PSATS 2013. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 123. Springer, Cham

Abstract

In this paper, we focus on the performance analysis of packet-level Forward Error Correction (FEC) codes based on Systematic Random Linear Network Coding (SRNC) for multimedia transmission via erasure satellite channels. A performance comparison is presented against maximum distance separable (MDS) codes currently used in state-of-the-art satellite transmission air interfaces, specifically Reed Solomon (RS) codes. Firstly, a theoretical analysis is presented for which we first develop a matricial erasure channel model. The theoretical analysis shows that both the RS and SRNC have, as expected, similar error correction performance over different packet erasure lengths for commonly used size fields. Secondly, we present an on-the-fly progressive algorithm for SRNC, which takes advantage of the inherent randomness of SRNC encoding. Thirdly, a performance comparison is presented for two different satellite scenarios: 1) DVB-S2/RCS railway scenario and 2) Broadband Global Area Network (BGAN) mobile scenario. We use real channel parameters for the first scenario and channel traces of video streaming sessions for the second scenario. Our simulation results confirm that both the RS codes and SNRC have the same packet recovery capabilities. However, for low coding rates, SRNC is shown to achieve up to 71% delay gain as compared to RS codes.

Keywords

Network Coding Erasure Channel Forward Error Correction MDS codes 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2013

Authors and Affiliations

  • Paresh Saxena
    • 1
  • M. A. Vázquez-Castro
    • 1
  1. 1.Universitat Autònoma de BarcelonaSpain

Personalised recommendations