New multi access selection method using differentiated weight of access interface

The fourth generation (4G) of wireless communications are growing rapidly and are integrating a multitude of radio access technologies (RAT'S). The most important issue of the mobile terminal which is equipped with multiple interfaces is how to select dynamically the best access network in terms of quality of service. To cope with this issue we propose a new technique for network selection decision. This technique combines two multi attribute decision making (MADM) methods such as analytic network process (ANP) to find the differentiate weights of available networks by considering each criterion, and the grey relational analysis (GRA) method to rank the alternatives. To show the effectiveness of our technique we present the simulation results of two traffic classes namely background and streaming.