QoE‐Based Network Interface Selection for Heterogeneous Wireless Networks

International audienceIn Heterogeneous Wireless Networks, mobile users use a terminal with multiple access interfaces for non-real-time or real-time applications (services). In such environment, the major issue is Always Best Connected (ABC), which means that the mobile nodes rank the network interfaces and select the best one at anytime and anywhere. To meet the ABC requirements, many network interface selection strategies have been proposed in the literature, using various technologies. This paper surveys existing approaches and discusses their advantages and limitations. The paper also highlights open issues in this area of research and proposes a new QoE-based approach for interface selection based on TOPSIS algorithm for e-Health use case. The effectiveness of our approach is evaluated through simulations. Obtained results show clearly that our approach ensures the best QoE for user, and eliminates a major inconvenient due to rank reversal (ranking abnormality)