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NANOG Meeting Presentation Abstract

Understanding Wireless Interference
Meeting: NANOG59
Date / Time: 2013-10-09 12:00pm - 12:45pm
This item is webcast
Room: Akimel Ballroom 3 & 4
Presenters: Speakers:

Suman Banerjee, UW-Madison

Suman Banerjee is an Associate Professor in Computer Sciences at UW-Madison. He received his undergraduate degree from IIT Kanpur, and MS and PhD degrees from the University of Maryland. He is a recipient of the NSF Career Award. He is the founding director of the WiNGS laboratory at UW-Madison. His research interest is broadly in networking and distributed systems, and his focus in recent years have been in different aspects of mobile and wireless sytems. He is the inaugural recipient of the ACM SIGMOBILE Rockstar award for early career achievements in the field. He is currently serving as the Chair of ACM SIGMOBILE.
Abstract: Interference is an unavoidable reality and a bane of wireless communication systems. In most wireless environments, loss of performance is attributed to RF interference. Even though wireless is the dominant form of Internet access today, there is a lack of adequate tools to understand this interference phenomenon. Hence when a user complains --- "My Skype call from my personal laptop was interrupted multiple times" --- the administrator cannot answer why. What is worse is that many of these causes are not repeatable. So by the time the administrator arrives with sophisticated analyzers, the problem is long gone.
In this talk, we will describe a comprehensive methodology and a toolkit that provides a real-time and efficient view of wireless interference as and when they occur. Using WiFi systems as examples, we describe our experience in building this toolkit, deploying them in various locations, and lessons learnt in understanding wireless interference. Our system has been deployed in multilocations in Madison, WI, for more than one year now and in this talk we would present some detailed view of wireless activities and interference patterns observed.
Files: youtubeUnderstanding Wireless Interference
Sponsors: None.

Back to NANOG59 agenda.

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