The Challenges of Technology Research for Developing Regions
IEEE Pervasive Computing
Scientific Measure of Africa's Connectivity
Information Technologies and International Development
A public transport system based sensor network for road surface condition monitoring
Proceedings of the 2007 workshop on Networked systems for developing regions
Information Technologies and International Development
Power consumption breakdown on a modern laptop
PACS'04 Proceedings of the 4th international conference on Power-Aware Computer Systems
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The development of a Wireless Sensor Network (WSN) gateway is challenging for sites where limited infrastructures lead to frequent power shortages and network unreliability. In this paper, we present a low-power, low-cost 802.15.4 and 802.11 compatible solution which uses open source software to meet local conditions. Using the SunSPOT motes on a system which is mostly platform independent, our system is based on the Fox embedded Linux board and equipped with a USB flash drive and a USB WiFi adapter. The system can be solar powered, and the results of a solar system design are presented. All the hardware components are available off-the-shelf and are easy to assemble. We conclude that our system is preferred for applications in remote areas, where a stable power supply and a reliable network infrastructure are lacking. Furthermore, it can be used to extend the range of WSNs by layering a network of long-range motes above islands of low-range motes.