A tractable model for optimizing device-to-device communications in downlink cellular networks
作者： Qiaoyang Ye , Mazin Al-Shalash , Constantine Caramanis , Jeffrey G. Andrews
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摘要: In this paper, we develop a tractable and accurate framework for Device-to-Device (D2D) enabled downlink cellular network with dedicated spectrum approach, meaning that D2D links use frequency band orthogonal to the users. Using stochastic geometry, provide expressions SINR distributions average rates, under an assumption of interference randomization via time and/or hopping. The obtained analytical results allow us easily explore optimize impact system parameters. For example, find optimal hopping probability users, i.e. how often they should randomly access subband. We also propose optimization approach mode selection, when potential users transmit directly, fall back mode. This can be viewed as optimized lower bound other more sophisticated scheduling schemes.
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