Computer Networks: The International Journal of Computer and Telecommunications Networking
On optimal network selection in a dynamic multi-RAT environment
IEEE Communications Letters
QoS-aware path selection for multi-homed mobile terminals in heterogeneous wireless networks
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
Automated network selection in a heterogeneous wireless network environment
IEEE Network: The Magazine of Global Internetworking
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In heterogeneous wireless environments which change dynamically, the optimal network selection problem is one of the key issues. This paper proposes a network selection scheme based on the required bandwidth, which estimates the bandwidth required to satisfy the quality of service (QoS) requirements of the target service. Required bandwidth can be estimated from the signal strength of each access path and the QoS requirements such as delay, packet loss, burst size, etc. The proposed scheme can also support multiple network selection by considering diversity gain and multiplexing gain. Simulation results show that the proposed scheme can achieve higher throughput or lower cost or lower power consumption according to the user preference, which outperforms the signal strength based network selection schemes.