Exploiting Interest Locality for Peer-Assisted Search in UGC Video Systems

Li, Zhenyu; Xie, Gaogang; Salamatian, Kavé

doi:10.1109/icpp.2012.27

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…Recent work shows that user access pattern follows various distributions such as stretched exponential distribution [9] and even non power-law distribution [13] with respect to different media types. The queries following those distributions will also be evaluated to see the performance of our LBA model.…”

Section: Resultsmentioning

confidence: 99%

LBA privacy preserving index and its theoretical analysis in cloud storage systems

Luo

Wang

Chen³

et al. 2014

Proceedings of the 2nd International Workshop on Security and Forensics in Communication Systems

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In cloud storage systems, the index system, which maps a queried item to its storage location, is a key component. Due to the limited space in the storage nodes, it requires to compact the index for fast response. Moreover, since the index may be published on many nodes of the system, the privacy of the nodes' ownership information needs to be protected. In this paper we introduce an indexing modelthe Lightweight Bloom filter Array (LBA) to improve the index performance while preserves item information on the nodes of the cloud storage systems. We conduct theoretical analysis to find the performance of the index system. We also make theoretical comparisons with other index method. Simulations show that the theoretical deduction is in good accordance with the expected performance.

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Section: Resultsmentioning

confidence: 99%

LBA privacy preserving index and its theoretical analysis in cloud storage systems

Luo

Wang

Chen³

et al. 2014

Proceedings of the 2nd International Workshop on Security and Forensics in Communication Systems

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show abstract

“…The popularity of video is assumed to follow the Weibull distribution which is known to well characterize the popularity of YouTube video [11], [15], [16]. The probability that a user requests a video of which popularity ranks among the top i is represented by…”

Section: System Modelmentioning

confidence: 99%

User Prefix Caching for Average Playback Delay Reduction in Wireless Video Streaming

Hong

Choi

2016

IEEE Trans. Wireless Commun.

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Each video clip has different degrees of popularity, and a user can cache some popular videos in preparation for the future requests. The cached data work as a buffer against the playback delay due to unstable wireless channels. Since the storage space for caching is limited while the number of video clips is tremendously large, a memory efficient caching strategy is important for maximizing the caching gain. We propose a user prefix caching scheme in a downlink network where each user caches an initial part (i.e., prefix) of each popular video to minimize the average playback delay. We derive closed form expressions of the optimal prefix size and the corresponding average playback delay. Our results show the effects of system parameters on the average playback delay and provide an insightful guideline on memory-efficient caching. Moreover, in the scenarios where a constraint on tolerable delay is given, we derive the minimum storage space required at each user and the maximum number of supportable users at a base station in wireless caching networks, which provide a useful insight on designing wireless caching networks.

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Converged Distribution of 5G Media: Opportunities of Overlaid Broadcast and Emerging Applications Over Dual Connectivity

Ahn

Park

Ahn

et al. 2022

IEEE Trans. on Broadcast.

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Exploiting Interest Locality for Peer-Assisted Search in UGC Video Systems

Cited by 3 publications

References 26 publications

LBA privacy preserving index and its theoretical analysis in cloud storage systems

LBA privacy preserving index and its theoretical analysis in cloud storage systems

User Prefix Caching for Average Playback Delay Reduction in Wireless Video Streaming

Converged Distribution of 5G Media: Opportunities of Overlaid Broadcast and Emerging Applications Over Dual Connectivity

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