基于效用函数的电力物联网异构网络接入QoS保障方法

随着电力物联网的发展，越来越多的通信接入方式被加入到智能配电网中，网络之间相互覆盖，相互重叠，现有的QoS保障方法已无法满足未来智能电网新业务的多样化需求以及异构网络的切换与统一问题所带来的挑战。提出了一种基于效用函数的电力物联网异构网络接入QoS保障方法。首先构建了效用函数评价模型，设计了评价参数，并给出了参数的效用函数。其次，设计了接入网络映射算法。最后，通过仿真实验，验证了基于效用函数的异构网络接入QoS保障方法在电力物联网背景下的性能与可靠性。

Utility Function Based Network Access Method in Power Grid HetNets with QoS Guarantee

With the development of power grid Internet of Things (PIoT), more and more communication access networks are introduced in PIoT system. However, due to the overlapping coverage among heterogeneous networks, the existing QoS guarantee methods can not meet diversified requirements of multiple applications and challenges by network handover in future smart grid. This paper proposed a novel network access method for QoS guarantee by utility function. First, we designed a utility function evaluation model. Secondly, the network mapping algorithm of heterogeneous access networks was proposed. Finally, the performance and reliability of QoS guarantee method of heterogeneous access network were verified by simulations.