Abstract:

Abstract: As the traffic blocking probability of traditional hard load balancing methods is generally high over heterogeneous wireless networks, we propose a load balancing algorithm based on dividing the IP flow (LBD) over heterogeneous wireless networks based on the idea of soft load balancing. Through numerical analysis, we obtain the optimal flow-dividing ratio to determine the volume of traffic delivered to each network, which
maintains network load balance. Simulation results show that the proposed method outperforms traditional hard load balancing techniques in terms of traffic blocking and packet loss probabilities.

Key words: heterogeneous wireless networks, load balancing, IP flow diversion, access selection, handover