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- W4360770713 abstract "Caching at the wireless edge is recognized as a promising solution to accommodate the explosive growth of traffic demand. However, the gain of edge caching is only pronounced given homogeneous user preference. To reap the full potential of caching, recommendation mechanism has emerged as an attractive technology due to its capability of reshaping users’ request distribution. In this work, we propose a joint user-side recommendation and device-to-device (D2D)-assisted offloading strategy, aiming to maximize the operator’s utility. Specifically, we consider that users can recommend their cached contents to encountered users. This strategy takes into account users’ personalized preferences and relative locations, and hence can directly offload the recommended contents through D2D links without burdening cellular links. We then develop a theoretical framework to evaluate the subsequent content transmission, accounting for the randomness of spatial deployment, user mobility, individual delay requirement, incentive, and protection mechanism for existing links. Based on the analytical results, we design a D2D-assisted offloading strategy, which allows the requester to postpone data reception in exchange for discounted service fees. Simulation results show that the operator’s utility can be significantly improved. Particularly, it is found that user mobility facilitates the above process." @default.
- W4360770713 created "2023-03-25" @default.
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- W4360770713 date "2023-01-01" @default.
- W4360770713 modified "2023-10-16" @default.
- W4360770713 title "Joint User-Side Recommendation and D2D-Assisted Offloading for Cache-Enabled Cellular Networks with Mobility Consideration" @default.
- W4360770713 doi "https://doi.org/10.1109/twc.2023.3258525" @default.
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