Continuous monitoring of achieved level of service quality in packet-switched networks represents an activity of major importance for network and service providers. This is paramount for network resources provisioning which have to satisfy expectations of fickle customers. However, providing enough resources to specific user does not automatically increase their Quality of Experience (QoE), hen...

Multi-sensory communications with haptics attract a number of researchers in recent years. To provide services of the communications with high realistic sensations, the researchers focus on the quality of service (QoS) control, which keeps as high quality as possible, and the quality of experience (QoE) assessment, which is carried out to investigate the influence on user perception and to veri...

The expansion of Internet-based services has increased the need to ensure a good quality on them. In this context, a preliminary work we developed exposes a Quality of Experience (QoE) evaluation framework based on the mathematical formalism of EFSMs, which includes business-related variables into the prediction analysis. In this paper, we present an implementation of this QoE evaluation framew...

Quality of Experience (QoE) is a human centric quality evaluation method which provides the blue print of human needs, perceptions, feelings and experiences with respect to a multimedia service. In a communications ecosystem, human interaction takes place alongside technological, contextual, and business domains, thus producing a holistic view on QoE formation. In this paper, we investigate the...

INTRODUCTION The use of telephony for vocal human-to-human communication is deeply integrated into our daily life. The technological development made telephony even more useful, e.g., with the emergence of mobile phones or Voice-overIP. However, creating and maintaining a reliably working telephony system has become an even more complex task; e.g., applying heterogeneous end-user devices and ne...

1. Introduction Video traffic is exponentially increasing over wireless networks due to proliferating video technology and the growing desire for anytime, anywhere access to video content. Cisco predicts that two-thirds of the world's mobile data traffic will be video by 2017 [1]. This imposes significant challenges for managing video traffic efficiently to ensure an acceptable quality of exper...

Increased Internet speeds together with new possibilities for tailor-made television services have spurred the interest in providing television via the Internet. Several television services are readily available and both IP-layer and application-layer (P2P) technologies are used. When disregarding commercial influences, customers will choose for IPTV or P2PTV based on the Quality of Experience ...

While with traditional QoS-based charging the pricing structure mainly reflects the delivered QoS in order to regulate the demand, the role of service prices in a Quality of Experience (QoE) context is more complex. Amongst others, the charged price may in addition have a direct impact on the user's quality perception. In this paper, we analyze the structure of the resulting fixpoint problem an...

In future Internet, multi-network services correspond to a new paradigm that intelligence in network control is gradually moved to the edge of the network. As a consequence, the application itself can influence or determine the amount of consumed bandwidth. Thus the user behaviour may change dramatically. This impacts the Quality of Service (QoS) and the Quality of Experience (QoE), a subjectiv...