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TIER Project

Current Work

Wireless Testbed: Setting up a Bay area wide testbed for experiments with 802.11/16 point-to-point long-distance links

Wireless solutions for network connectivity in remote areas with no existing telecommunication infrastructure can be orders of magnitude cheaper than wired solutions. Meshes of point-to-point long-distance wireless links between villages, augumented with a number of broadband satellite connections seem to be one of the best connectivity choices.

Therefore we are conducting a study aimed at assessing the performance of point-to-point wireless directional links. Our performance metrics are bandwidth, delay, and power consumption, as a function of the equipment employed (802.11 and 802.16 interface cards, directional antennas, relays, signal amplifiers), and other parameters of the connection (distance, hight of relay towers, weather conditions, interference, etc.).

We are currently in the process of setting up a number of long distance links in Berkeley and the sorrounding areas. We are using high-power 802.11 radios and high gain directional antennas connected to Soekris single-board computer based routers. We are also using cricket in combination with SNMP for monitoring and collection of link data. More details on the links will be added.

Latest News

Nov 4: The presentations from this year's TIER Workshop are available online. Thanks to everyone who participated - we welcome any feedback or further questions about our work. For those of you interested in future TIER events, please subscribe to our mailing list.

Oct 11: There will be an all-day TIER Workshop at 110 South Hall on Saturday, October 29. Please contact Melissa if you are interested in being invited.

Sept 27: Results and photos from the Computer Aided Learning Survey done by Joyojeet Pal with Azim Premji and MSR India are available.

Sept 24: Please consider submissions to WWW2006, and its new Developing Regions track.

June 1: Our article, "The Case for Technology in Developing Regions" (PDF) appears in the June 2005 issue of IEEE Computer.

May 10-14: Eric Brewer is a keynote speaker at the 14th International World Wide Web Conference in Chiba, Japan.

May 3, 10: The IS290: ICT4D, Context, Impact and Strategies class, taught by Joyojeet Pal and AnnaLee Saxenian, is presenting their final projects in South Hall.

April 21-23: Thanks to all who came and participated in the ICT and Needs and Opportunities workshops at the Bridging the Divide conference.

This material is based upon work supported by the National Science Foundation under Grant No. 0326582.
Please email your suggestions and comments to melissa AT cs DOT berkeley DOT edu.
Last updated: May 16 2005 .