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Quality of Experience Engineering for Customer Added Value Services: From Evaluation to Monitoring by Abdelhamid Mellouk, Antonio Cuadra-Sanchez

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12

QoE-based Network Selection in Heterogeneous Environments

Kandaraj PIAMRAT, Hyunhee PARK, Kamal DEEP SINGH and César VIHO.

The increasing demand to be connected anywhere, anytime and anyhow has encouraged the deployment of heterogeneous networks with a mix true of technologies such as LTE, Wi-Fi, WiMAX, etc. At the same time, most of the new user terminals (e.g. smart phones, tablets, etc.) are equipped with multiple interfaces, which allow them to select the access network that offers the best quality. Managing networks in such an environment is challenging. Moreover, nowadays quality of experience (QoE) has become a crucial issue due to a phenomenal growth in multimedia traffic. As user satisfaction is the key to the success of any service, the network selection should be centered on QoE or the quality perceived by the end user. In other words, a network selection mechanism should select the network that offers the best QoE, while trying to optimize the network resources. In this chapter, we first present a QoE-based network selection mechanism for homogeneous environment. When several points of attachment are available, we propose to use a QoE-based solution that allows users to select the best network while keeping the load balanced among them. We move on to provide a network selection scheme for heterogeneous environments, which is the main focus of the rest of this chapter. Our proposal takes QoE into account (among other metrics) for network selection and also provides ...

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