The multi-attribute vertical handoff algorithm based on node mobility

The combination of different networks adopting various wireless access technologies can improve the wireless transmission performance. Vertical handoff is the basis of mutual integration of heterogeneous wireless networks, and handoff decision is a critical part in the vertical handoff process, which determines handoff performance. Multi-attribute vertical handoff algorithm based on node mobility is proposed in this paper, and the mobility model is built based on node mobility characteristics. The current access point pre-switch to the adjacent access points, and when the signal coverage rate of the access point is below a pre-set threshold, handoff is triggered. The experimental results show that: compared with the traditional multi-attribute decision making, the proposed algorithm has obvious advantages in handoff performance.