A new multi-attribute decision-making vertical handover algorithm

Vertical handoff is the basic requirement of the convergence of different access technologies. It is also the key characteristic and technology of overlay wireless network with appropriate network interfaces. Most existing vertical handoff decision strategies are designed to meet individual needs that may not achieve a good system performance. In this paper, we propose and analyze a new vertical handoff decision strategy that considers the performance of the whole system. The performance of the proposed vertical handoff decision strategy and existing strategy was compared, the results show a very good match between simulation and analytical results that the proposed strategy is better in the blocking probability of vertical handoff calls.