| 1. |
- Baig, Roger, et al.
(author)
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Deploying Clouds in the Guifi Community Network
- 2015
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In: Proceedings of the 2015 IFIP/IEEE International Symposium on Integrated Network Management, IM 2015. - : IEEE. ; , s. 1020-1025
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Conference paper (peer-reviewed)abstract
- This paper describes an operational geographically distributed and heterogeneous cloudinfrastructure with services and applications deployed in the Guifi community network. The presentedcloud is a particular case of a community cloud, developed according to the specific needs and conditions of community networks. We describe the concept of this community cloud, explain our technical choices for building it, and our experience with the deployment of this cloud. We review our solutions and experience on offering the different service models of cloud computing (IaaS, PaaS and SaaS) in community networks. The deployed cloud infrastructure aims to provide stable and attractive cloud services in order to encourage community network user to use, keep and extend it with new services and applications.
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| 2. |
- Baig, Roger, et al.
(author)
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The Cloudy Distribution in Community Network Clouds in Guifi.net
- 2015
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Conference paper (peer-reviewed)abstract
- This demo paper presents Cloudy, a Debian-based distribution to build and deploy clouds incommunity networks. The demonstration covers the following aspects: Installation of Cloudy, theCloudy GUI for usage and administration by end users, demonstration of Cloudy nodes and services deployed in the Guifi community network.
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| 3. |
- Flickenger, Rob, et al.
(author)
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Very long distance Wi-Fi networks
- 2008
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In: Proceedings of the ACM SIGCOMM 2008 Conference on Computer Communications -2nd ACM SIGCOMM Workshop on Networked Systems for Developing Regions, NSDR'08. - New York, NY, USA : ACM. - 9781605581804 ; , s. 1-5
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Conference paper (other academic/artistic)abstract
- 802.11 Wi-Fi technology is commonly used for creating wireless networks with a range of about one hundred meters. With careful planning and proper antennas, this same equipment can be used to make point-to-point links of hundreds of kilometers. This paper presents a successful 279 km link made by wireless experts in Venezuela, and a permanent 133 km test network in northern Italy for ongoing research.
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| 4. |
- Imran, Muhammad A., et al.
(author)
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Exploring the Boundaries of Connected Systems: Communications for Hard-to-Reach Areas and Extreme Conditions
- 2024
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In: Proceedings of the IEEE. - : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9219 .- 1558-2256.
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Journal article (peer-reviewed)abstract
- Cellular communication standards have been established to ensure connectivity across most urban environments, complemented by deployment hardware and facilities tailored for city life. At the same time, numerous initiatives seek to broaden connectivity to rural and developing areas. However, with nearly half the global population still offline, there is an urgent need to drive research toward enhancing connectivity in areas and conditions that deviate from the norm. This article delves into innovative communication solutions not only for hard-to-reach and extreme environments but also introduces “hard-to-serve” areas as a crucial, yet underexplored, category within the broader spectrum of connectivity challenges.We explore the latest advancements in communication systems designed for environments subject to extreme temperatures, harsh weather, excessive dust, or even disasters such as fires. Our exploration spans the entire communication stack, covering communications on isolated islands, sparsely populated regions, mountainous terrains, and even underwater and underground settings. We highlight system architectures, hardware, materials, algorithms, and other pivotal technologies that promise to connect these challenging areas. Through case studies, we explore the application of 5G for innovative research, long range (LoRa) for audio messages and emails, LoRa wireless connections, free-space optics, communications in underwater and underground scenarios, delay-tolerant networks, satellite links, and the strategic use of shared spectrum and TV white space (TVWS) to improve mobile connectivity in secluded and remote regions. These studies also touch on prevalent challenges such as power outages, regulatory gaps, technological availability, and human resource constraints, where we introduce the concept of peri-urban hard-to-serve areas where populations might struggle with affordability or lack the skills for traditional connectivity solutions. This article provides an exhaustive summary of our research, showcasing how 6G and future networks will play a crucial role in delivering connectivity to areas that are hard-to-reach, hard-to-serve, or subject to extreme conditions (ECs).
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| 5. |
- Jimenez, Javi, et al.
(author)
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Supporting cloud deployment in the Guifi.net community network
- 2013
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In: Global Information Infrastructure Symposium, GIIS 2013. - : IEEE. - 9781479929696
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Conference paper (peer-reviewed)abstract
- Community networking is an emerging model of a shared communication infrastructure in which communities of citizens build and own open networks. Community networks offer successfully IP-based networking to the user. Cloud computing infrastructures however, while common in today's Internet, hardy exist in community networks. We explain our approach to bring clouds into the Guifi.net community network. For this we have started integrating part of our cloud prototype into the Guifi.net community network management tools. A proof-of-concept cloud infrastructure is currently under deployment in the Guifi.net community network. Our long term vision is that the users of community networks will not need to consume cloud applications from the Internet, but find them within the community network.
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| 6. |
- Zennaro, Marco, et al.
(author)
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On a long wireless link for rural telemedicine in Malawi
- 2008
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In: 6th International Conference on Open AccessLilongwe, Malawi, 2008.
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Conference paper (peer-reviewed)abstract
- In this paper we describe the process that brought us to setup a 162 km wireless link in Malawi: the first experiments in Venezuela and Italy, the equipment selection and the link deployment in August 2008. The network connects the University of Malawi College of Medicine in Blantyre with with the Mangochi Hospital as well as hospitals and research institutions in the cities of Blantyre, Zomba and Mangochi. We show that long-distance Wi-Fi links can be a practical, inexpensive alternative for providing network connectivity and access to the Internet in Developing Countries.
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