Efficient Parallelized Network Coding for P2P File Sharing Applications

  • Karam Park
  • Joon-Sang Park
  • Won W. Ro
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5529)

Abstract

In this paper, we investigate parallel implementation techniques for network coding to enhance the performance of Peer-to-Peer (P2P) file sharing applications. It is known that network coding mitigates peer/piece selection problems in P2P file sharing systems; however, due to the decoding complexity of network coding, there have been concerns about adoption of network coding in P2P file sharing systems and to improve the decoding speed the exploitation of parallelism has been proposed previously. In this paper, we argue that naive parallelization strategies of network coding may result in unbalanced workload distribution and thus limiting performance improvements. We further argue that higher performance enhancement can be achieved through load balancing in parallelized network coding and propose new parallelization techniques for network coding. Our experiments show that, on a quad-core processor system, proposed algorithms exhibit up to 30% of speed-up compared to an existing approach using 1 Mbytes data with 2048×2048 coefficient matrix size.

Keywords

Network coding parallelization random linear coding 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Karam Park
    • 1
  • Joon-Sang Park
    • 2
  • Won W. Ro
    • 1
  1. 1.School of Electrical and Electronic EngineeringYonsei UniversitySeoulKorea
  2. 2.Department of Computer EngineeringHongik UniversitySeoulKorea

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