Ramon Sanchez-Iborra

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The emergence of low-cost connected devices is enabling a new wave of sensorization services. These services can be highly leveraged in industrial applications. However, the technologies employed so far for managing this kind of system do not fully cover the strict requirements of industrial networks, especially those regarding energy efficiency. In this(More)
Voice over LTE (VoLTE) emerges as the basis for voice services in future cellular networks. At the same time, Quality of user Experience (QoE) assessment methods have notably evolved in the last years, especially for Voice over IP (VoIP) services. The question that rises is, are these models ready to be used for VoLTE? In this paper, we contribute to answer(More)
Nearly three-fourths of the world's mobile data traffic will be video in the next 5 years. Video is one of the most demanding services in terms of network efficiency, reliability, and quality. In this work, we present a comparative performance evaluation of three different video streaming protocols, namely MPEG-DASH, RTSP, and RTMP for both on-demand and(More)
Voice over IP (VoIP) and wireless networks are technologies that are receiving an increasing interest by both, the research community and the final users. For instance, the effect of layer two handoffs, delay constraints, channels with constant bit error rates, packet size, UDP traffic, TCP traffic, overheads from different layers, etc., have been(More)
Coordination among traffic signal controllers in urban areas has been one of the research focuses on Intelligent Transportation Systems (ITS). Many investigations have addressed this topic with the aim of improving the average traffic delay in urban arterials usually by minimizing the number of stops or by maximizing the average speed of the road. Despite(More)