Abstract:

The main purpose of the application of cognitive radio (CR) technology in the Home Area Network (HAN) of smart grid is to improve the spectrum utilization. Power control is one of the main ways of improving spectrum efficiency and spectrum sharing. By reducing the interference between secondary users (SUs), users' signal to interference plus noise power ratio (SINR) is improved so as to ensure the normal communications among SUs. We study three power control algorithms in the performance of home area access control network of smart grid based on CR technology. Simulation results show that the three algorithms have rapid convergence and high efficiency, which can reduce the system overhead to a certain extent and improve the network performance, thus having very good guidance significance for practical engineering.

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