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Efficient video pricing and caching in heterogeneous networks
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-5407-0835
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2015 (English)In: IEEE Transactions on Vehicular Technology, ISSN 0018-9545, E-ISSN 1939-9359, Vol. PP, no 99, 7365479Article in journal (Refereed) Published
Abstract [en]

Evidence indicates that downloading on-demand videos accounts for a dramatic increase in data traffic over cellular networks. Caching popular videos in the storage of small-cell base stations (SBS), namely, small-cell caching, is an efficient technology for mitigating redundant data transmissions over backhaul channels in heterogeneous networks (HetNet). In this paper, we consider a commercialized small-cell caching system consisting of a video retailer (VR), multiple network service providers (NSP) and mobile users (MU). The VR leases its popular videos to the NSPs for the purpose of making profits, and the NSPs, after placing these videos to their SBSs, can efficiently reduce the repetitive video transmissions over their backhaul channels. We study such a system within the framework of Stackelberg game. We first model the MUs and SBSs as two independent Poisson point processes, and develop the probability of the event that an MU can obtain the demanded video directly from the memory of an SBS. Then, based on the derived probability, we formulate a Stackelberg game to jointly maximize the average profit of the VR and the NSPs. Also, we investigate the Stackelberg equilibrium via solving an optimization problem. Numerical results are provided for verifying the proposed framework by showing its effectiveness on pricing and resource allocation.

Place, publisher, year, edition, pages
IEEE Press, 2015. Vol. PP, no 99, 7365479
Keyword [en]
Heterogenous cellular networks, Stackelberg game, Stochastic geometry, Wireless caching, Digital storage, Heterogeneous networks, Image communication systems, Mobile telecommunication systems, Optimization, Profitability, Stochastic systems, Wireless networks, Cellular network, Heterogeneous Network (HetNet), Optimization problems, Poisson point process, Pricing and resource allocation, Stackelberg equilibrium, Stackelberg Games, Economics
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-194698DOI: 10.1109/TVT.2015.2511806ISI: 000386658000076ScopusID: 2-s2.0-84990925733OAI: oai:DiVA.org:kth-194698DiVA: diva2:1048644
Note

Funding Details: 61501238, NSFC, National Natural Science Foundation of China

QC 20161121

Available from: 2016-11-21 Created: 2016-10-31 Last updated: 2016-11-29Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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