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- W2912862452 abstract "Small-cell network is a promising solution to high video traffic. However, with the increasing number of mobile devices, it cannot meet the requirements from all users. Thus, we propose a caching device-to-device (D2D) scheme for small-cell networks, in which caching placement and D2D establishment are combined. In this scheme, a limited cache is equipped at each user, and the popular files can be prefetched at the local cache during off-peak period. Thus, dense D2D connections can be established during peak time aided by these cached users. To do this, first, an optimal caching scheme is formulated according to the popularity to maximize the total offloading probability of the D2D system. Then, the sum rate of D2D links is analyzed in different signal-to-noise ratio (SNR) regions. Furthermore, three D2D-link scheduling schemes are proposed with the help of bipartite graph theory and Kuhn-Munkres algorithm for low, high and medium SNRs, respectively. Simulation results are presented to show the effectiveness of the proposed scheme." @default.
- W2912862452 created "2019-02-21" @default.
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- W2912862452 date "2018-11-01" @default.
- W2912862452 modified "2023-10-11" @default.
- W2912862452 title "Dense D2D-Connection Establishment via Caching in Small-Cell Networks" @default.
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- W2912862452 doi "https://doi.org/10.1109/apcc.2018.8633518" @default.
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