Jorge Infante

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This paper describes the implementation and deployment of a novel architecture for a metropolitan open wireless access network, shared among different service providers. A layered model that differentiates four different actors (user, Wireless Island, Neutral Operator and Service Provider) is introduced, and the mechanism to allow Service Provider selection(More)
The present article provides a literature review in the field of open access networks and points out additional strengths of infrastructure sharing in the advent a new wave wireless advances. The first part of the article summarizes different initiatives carried out both by researchers and practitioners around the globe. The focus is on finding(More)
This paper introduces a micropayment mechanism suitable for Wireless Internet Access Providers. It is proposed that the users obtain the credentials that allow them to surf the web after sending a Premium-rated SMS, thus avoiding a direct payment relationship between the user and the WISP. Mobile users are familiar with Premium SMS and consider them a(More)
Future broadband wireless services will involve a range of different technologies, all with varying characteristics. These differences can influence significantly how a service is defined and deployed as well as how it is commercially offered to customers. Key technologies and services that will influence and shape the future broadband telecommunication(More)
The stunning growth of WiFi networks, together with the spreading of mobile telephony and the increasing use of Voice over IP (VoIP) on top of Internet, pose relevant questions on the application of WiFi networks to support VoIP services that could be used as a complement and/or competition to the 2G/3G cellular networks. Voice has been, is, and will surely(More)
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