International Workshop on Multiple Access Communications

MACOM 2015: Multiple Access Communications pp 57-69

Device-to-Device Data Storage with Regenerating Codes

  • Joonas Pääkkönen
  • Camilla Hollanti
  • Olav Tirkkonen
Conference paper

DOI: 10.1007/978-3-319-23440-3_5

Part of the Lecture Notes in Computer Science book series (LNCS, volume 9305)
Cite this paper as:
Pääkkönen J., Hollanti C., Tirkkonen O. (2015) Device-to-Device Data Storage with Regenerating Codes. In: Jonsson M., Vinel A., Bellalta B., Tirkkonen O. (eds) Multiple Access Communications. MACOM 2015. Lecture Notes in Computer Science, vol 9305. Springer, Cham

Abstract

Caching data files directly on mobile user devices combined with device-to-device (D2D) communications has recently been suggested to improve the capacity of wireless networks. We investigate the performance of regenerating codes in terms of the total energy consumption of a cellular network. We show that regenerating codes can offer large performance gains. It turns out that using redundancy against storage node failures is only beneficial if the popularity of the data is between certain thresholds. As our major contribution, we investigate under which circumstances regenerating codes with multiple redundant data fragments outdo uncoded caching.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Joonas Pääkkönen
    • 1
  • Camilla Hollanti
    • 1
  • Olav Tirkkonen
    • 2
  1. 1.Department of Mathematics and Systems Analysis, School of ScienceAalto UniversityEspooFinland
  2. 2.Department of Communications and Networking, School of Electrical EngineeringAalto UniversityEspooFinland

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