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5G is expected to support new services and applications that will change the user experience and will drive to a new business landscape. Moreover, most of the services will require optimum connectivity and seamless mobility in heterogeneous networks. To cope with these challenges, network mobility management and network densification are envisioned to be key factors in the emerging 5G architectures. By deploying a large number of cells, 5G architectures can provide users with high throughput and flexible access services, an improvement of the network scalability and optimized network coverage. However, with this densification, seamless mobility support can lead to significant increasing in signaling overhead due to frequent handovers. In this context, network operators need to efficiently plan the deployment of the base stations taking into account the mobility management of the users, and the service degradation that this mobility process could cause. This article aims to optimize the assignment of the base stations to the access routers in the mobile network to improve the network performance. The results obtained show that our proposed Link-Network Assignment algorithm based on clustering techniques achieve significant gains in terms of signaling and data forwarding costs. These simulation results demonstrate that the proposed algorithm can successfully reduce signaling cost and packet delivery cost by up to 56% and 5%, respectively, on average, compared with baseline algorithms. [ABSTRACT FROM AUTHOR]

In a world where the use of electronic communication and information systems is constantly expanding, a good user experience becomes a decisive factor for the success of a product in increasingly saturated and competitive markets. Ensuring the success of a product such as a website or a mobile application is not trivial as plenty of factors may have an influence on determining the adequacy of the experience for a given group of users. This paper uses real examples to study the concept of user experience, dealing in depth with the different factors which influence the ultimate success of a product, as well as how they must be taken into account while designing and managing interactive information systems. We also discuss the way they are supported by the different standards to improve user experience. [ABSTRACT FROM AUTHOR]

Technological advances in the field of information and interactive systems mean that increasing numbers of factors and criteria are considered to assess quality during the design, development and evaluation process. In this context, concepts such as quality of use and user experience have appeared and in many cases are replacing or supplementing existing usability properties to identify the quality of the interaction process. In this paper we describe and analyze the evolution of the different concepts to identify the quality of the interaction on information systems and we help to characterize and locate each quality factor in one dimension and a specific range of the process of use, and consider the relationships and overlap between these concepts. [ABSTRACT FROM AUTHOR]