Abstract
In this paper, problems in current heterogeneous networks are analyzed, such as too many parameters which make it hard to balance, ping-pong effect and handover dropping caused by frequent handover. Aiming at these problems, combining with parameters which are rarely considered intuitively in current multiple attribute decision making algorithms, a network handover trigger algorithm based on location information and a network selection algorithm based on DS evidence theory and analytic hierarchy process are proposed. On foundation of ensuring the quality of communication, the algorithm effectively controls the parameters which are used to assess the network handover. Simulation results verify the effectiveness of the algorithm.