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Caching based socially-aware D2D communications in wireless content delivery networks: a hypergraph framework
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- Bai, Bo (author)
- Tsinghua University
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- Wang, L. (author)
- Beijing University of Posts and Telecommunications (BUPT)
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- Han, Z. (author)
- University of Houston
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- (creator_code:org_t)
- 2016
- 2016
- English.
- In: IEEE Wireless Communications. - 1536-1284 .- 1558-0687. ; 23:4, s. 74-81
- Journal article (peer-reviewed)
Abstract
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- The emergence of the D2D communications paradigm has transformed the way in which cellular networks are operated. Previous work in D2D communications, however, mainly focused on interference management and capacity maximization of both D2D links and cellular links. Recent literature has observed that the QoE can be greatly enhanced by caching contents in mobile devices, with a carefully designed caching strategy. In this article, we propose a novel hypergraph framework that designs the caching based D2D communication scheme by taking social ties among users and common interests into consideration. We first present the considered features of the D2D transmission scheme, social characteristics consideration, and interest similarity impact. The key concepts of hypergraph and related techniques, such as hypergraph coloring and multidimensional matching, are explained. Then some design issues with simulation results in the proposed framework are discussed in detail, which show the potential of the proposed approach. By jointly considering social ties, common interests, and the D2D transmission scheme, we believe the proposed framework explores new opportunities and future directions in caching based socially-aware D2D communications.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
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- ref (subject category)
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