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- W3117946643 abstract "The rapid growth of mobile data traffic demand will cause congestion to the future communication network. The cache-enabled device-to-device communication has been proven to effectively enhance the performance of wireless communication networks. This article investigates the caching deployment problem from the energy efficiency in the cache-enabled device-to-device networks. According to the random geometry theory modeling, the closed form expression of energy efficiency is derived, which measures the average number of successful transmitted file bits per unit time and per unit power consumption. And then we establish an optimization problem to maximize energy efficiency. As the formulated optimization problem is a multiple-ratio fractional programming problem that cannot be solved conveniently, we propose a quadratic transformation method to nest in the energy efficiency maximization problem. To tackle this problem, an iterative optimization algorithm is proposed to optimize the caching policy and network energy efficiency. The simulation results demonstrate that the proposed policy can achieve higher energy efficiency and hit probability in the cache-enabled device-to-device network." @default.
- W3117946643 created "2021-01-05" @default.
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- W3117946643 date "2020-12-01" @default.
- W3117946643 modified "2023-10-12" @default.
- W3117946643 title "Caching deployment based on energy efficiency in device-to-device cooperative networks" @default.
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- W3117946643 doi "https://doi.org/10.1177/1550147720984659" @default.
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