{"69350":{"#nid":"69350","#data":{"type":"news","title":"Georgia Tech Researchers to Demo and Deploy Disaster Communications System","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EATLANTA, Aug. 16, 2011 \u2014\u003C\/strong\u003E In the aftermath of most disasters \u2013 from the terrorist attacks of Sept. 11, 2001, to this year\u2019s earthquake in Japan \u2013 communication systems have been overwhelmed, leaving people without phones and Internet when they need these tools the most. \u003C\/p\u003E\u003Cp\u003EFortunately, Georgia Tech College of Computing researchers have developed a possible solution. It\u2019s an innovative wireless system called LifeNet designed to help first responders communicate after disasters. LifeNet is a mobile ad-hoc network designed for use in highly transient environments that requires no infrastructure such as Internet, cell towers or traditional landlines.\u0026nbsp; \u003C\/p\u003E\u003Cp\u003E\u201cIt\u2019s an independent network you can join,\u201d said Santosh Vempala, Georgia Tech distinguished professor of computer science in the College of Computing. \u0026nbsp;\u003Cbr \/\u003E\u201cIt doesn\u2019t need wires, antennas, cell towers and so on, and it works across platforms like laptops and smart phones. We imagine relief agencies would be able to set up a network right away and communicate about what\u2019s needed.\u201d\u003C\/p\u003E\u003Cp\u003EVempala and his graduate student, Hrushikesh Mehendale, will demonstrate the LifeNet system at the ACM SIGCOM conference from 3:30 p.m. to 6 p.m. today in Toronto, Canada.\u003C\/p\u003E\u003Cp\u003EThe standard for post-disaster communications is the satellite phone, which, at $600 or more per unit, can be expensive to own and, at 50 cents per text, costly to use.\u003C\/p\u003E\u003Cp\u003ELifeNet, however, bridges connectivity between a satellite phone or other Internet gateway and a WiFi-based network on the ground. It extends the coverage of a satellite phone or a service such as SMS from one computer with access to the entire independent network in the field. Essentially, that means several people in the field who may not have satellite phones but have smart phones or laptops with WiFi capability can connect to the LifeNet network, communicate with each other with no other infrastructure and use the Internet as long as any one of them has access.\u003C\/p\u003E\u003Cp\u003E\u201cCurrently available options such as satellite communication are expensive and have limited functionality,\u201d Mehendale said. \u201cIf you use LifeNet, the cost savings per text message is 100 times less than a satellite phone.\u201d\u003C\/p\u003E\u003Cp\u003ELifeNet is also easy to set up. The network starts as soon as a node is put in place. Each LifeNet-enabled computer acts as both a host client and a router, able to directly route data to and from any other available wireless device.\u0026nbsp; Nodes can be moved from location to location as needed, and the network remains intact.The software developed by Vempala and Mehendale for LifeNet provides basic communications that are low bandwidth and reliable.\u0026nbsp; It doesn\u2019t allow users to stream video, for example, but it can send text messages for basic communication needs.\u003C\/p\u003E\u003Cp\u003E\u201cIt\u2019s a trade-off of performance for reliability,\u201d Vempala said. \u201cReliability is really what you need the most in these situations.\u201d \u003C\/p\u003E\u003Cp\u003EDuring the demo at SIGCOMM, conference attendees will be able to see the Atlanta-based LifeNet network via a web-based interface in Toronto. They will be able to log into the network, send messages, move nodes and see how communication is affected.\u0026nbsp; \u003C\/p\u003E\u003Cp\u003EGeorgia Tech researchers are currently ready to deploy LifeNet for field testing and are looking to expand beyond crisis communications. \u003C\/p\u003E\u003Cp\u003EVempala\u2019s team recently partnered with Tata Institute of Social Sciences India, which has a disaster management center. Together, the researchers identified cyclone-affected areas without communications infrastructure that could benefit most from LifeNet. As a result, researchers will be deploying LifeNet in the Mohali region of India over the next several months. \u003C\/p\u003E\u003Cp\u003E\u201cIn an area without any other connectivity, we will establish a set up that could be used daily and could also be specifically helpful during a disaster,\u201d Mehendale said. \u201cWe need to make the solution a part of their daily lives since people cannot afford costly equipment like satellite phones in third-world regions.\u201d\u003C\/p\u003E\u003Cp\u003EThe researchers also hope to pitch LifeNet as a package to FEMA, the Red Cross and other U.S. relief agencies soon. \u003C\/p\u003E\u003Cp\u003E\u201cThere are many recent situations, like the Mississippi floods this summer, where this would have been valuable,\u201d Vempala said. \u201cPeople were trapped. Cell phones were not working, the Internet is down and people don\u2019t have a way to communicate. . . . LifeNet can be the solution.\u201d\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EGeorgia Tech College of Computing researchers led by Santosh Vempala (\u003Cem\u003EComputer Science\u003C\/em\u003E) have developed a mobile \nad-hoc information network called LifeNet designed to \nhelp first responders communicate after disasters. \u003Cem\u003ESource: GT Communications \u0026amp; Marketing\u003C\/em\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":"","uid":"27174","created_gmt":"2011-08-15 16:27:15","changed_gmt":"2016-10-08 03:09:55","author":"Mike Terrazas","boilerplate_text":"","field_publication":"","field_article_url":"","dateline":{"date":"2011-08-16T00:00:00-04:00","iso_date":"2011-08-16T00:00:00-04:00","tz":"America\/New_York"},"extras":[],"groups":[{"id":"47223","name":"College of Computing"}],"categories":[],"keywords":[{"id":"1344","name":"disaster logistics"},{"id":"8743","name":"emergency preparedness"},{"id":"14010","name":"information networks"},{"id":"1144","name":"networking"},{"id":"167405","name":"santosh vempala"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Ca href=\u0022mailto:bstreich@cc.gatech.edu\u0022\u003EBrendan Streich\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E404-313-5944\u003C\/p\u003E","format":"limited_html"}],"email":["bstreich@cc.gatech.edu"],"slides":[],"orientation":[],"userdata":""}}}