KEYWORDS: Telecommunications, Data transmission, Wireless energy transfer, Data communications, Systems modeling, Signal to noise ratio, Mathematical optimization, Interference (communication), Wireless communications, Power grids
In order to tackle the issues of co-channel interference from cellular users and limited data rates in D2D communication for power equipment, the authors have proposed a D2D communication rate-based transmission power optimization method, and formulated an optimization problem based on D2D communication rate. The proposed method employs the Harris Hawks Optimization (HHO) algorithm to maximize the sum rate as the objective function while taking D2D communication rate symmetry and cellular communication quality as constraints. By optimizing the transmission power of power equipment and using sum rate as the influencing factor, the method selects the spectrum that is shared by both cellular users and power equipment. The simulation results indicate that the proposed method can significantly enhance the sum rate of the communication system when compared to the spectrum random access scheme.
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