Cooperative Recording to Increase Storage Efficiency in Networked Home Appliances

This paper presents a novel cooperative recording scheme in networked PVRs based on P2P networks to increase storage efficiency compared with when PVRs operate independently of each other, while maintaining program availability to a similar degree. We employ an erasure coding technique to guarantee...

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Bibliographic Details
Published inIEICE Transactions on Information and Systems Vol. E105.D; no. 3; pp. 727 - 731
Main Authors KIM, Eunsam, KIM, Jinsung, SHIN, Hyoseop
Format Journal Article
LanguageEnglish
Published Tokyo The Institute of Electronics, Information and Communication Engineers 01.03.2022
Japan Science and Technology Agency
Subjects
Availability
cooperative recording
Efficiency
Household appliances
networked PVRs
P2P streaming
Performance degradation
Recording
Redundancy
storage efficiency
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Summary:This paper presents a novel cooperative recording scheme in networked PVRs based on P2P networks to increase storage efficiency compared with when PVRs operate independently of each other, while maintaining program availability to a similar degree. We employ an erasure coding technique to guarantee data availability of recorded programs in P2P networks. We determine the data redundancy degree of recorded programs so that the system can support all the concurrent streaming requests for them and maintain as much availability as needed. We also present how to assign recording tasks to PVRs and playback the recorded programs without performance degradation. We show that our proposed scheme improves the storage efficiency significantly, compared with when PVRs do not cooperate with each other, while keeping the playbackability of each request similarly.
ISSN:0916-8532
1745-1361
DOI:10.1587/transinf.2021EDL8077