To meet the increasing demands of marketing and distribution fusion and IP distribution in internet of things

it is difficult for a single power line or wireless communication technology to meet all the services requirements. The cooperation of power line and wireless communication can complement each other

and thus to solve the problems of poor supporting capability of a single technology. Consequently

we studied the power line and wireless network fusion based on virtual MAC

and proposed a link selection and traffic allocation strategy. Based on the queuing theory

the traffic allocation scheme of the virtual MAC layer both in single-hop network and multi-hop network were modeled and analyzed

where the delay is taken as the optimization target

and the traffic allocation proportion of each link is determined according to the network parameters. Numerical analysis shows that the proposed traffic allocation strategy can reduce the communication delay.