University of Oregon

Efficient and Comprehensive Wireless Network Management

A Computer and Information Science Colloquium
Who Should Come: 
This event is only open to the UO Community
Thursday, April 11, 2013 - 2:30pm - 4:30pm
220 Deschutes Hall

Wireless networks are becoming increasingly ubiquitous, complex, heterogenous, and important. Without careful planning and a thorough understanding, these technologies quickly suffer from fundamental limitations and inefficiencies, such as loss, interference, and energy wastage. In this talk, I will present my research on wireless network management to ensure wireless networks do not experience unnecessary performance degradation. I will first detail an approach to conserve energy on mobile devices. Due to an imprecise standard, current Wi-Fi power saving techniques break down in the face of competing traffic, leading to wasted energy, increased loss, and unfairness. I will outline an approach, called NAPman, that provides network-side scheduling techniques to isolate and prioritize traffic to power-saving devices in a fair manner. NAPman is easily implemented through simple software changes on the access point, and experiments show up to 70% energy savings, while eliminating unnecessary loss and providing fairness to wireless clients. Next, I will summarize current work in cellular network management. Specially, I'll discuss a platform that rapidly obtains cellular network channel measurements which are used to understand wireless propagation in specific environments and assist deployment engineering in cellular tower placement. Finally, I will conclude the talk with future work in cellular and next-generation wireless networks.

Eric Rozner is a Senior Member of the Technical Staff at AT&T Labs - Research. He obtained his PhD in December 2011 from the University of Texas at Austin and his undergraduate degree from the University of Wisconsin-Madison in 2005. His research focuses on wireless network management, with an emphasis on designing and building wireless systems to manage interference, loss, energy, coexistence, and spectrum in Wi-Fi, cellular, and next-generation wireless networks. He is also interested in mobility-related applications and services. His work has been published in numerous conferences and journals, as well as covered in the press by and the MIT Technology Review. In his spare time, he enjoys baking bread, eating great food, working out, watching football, and volunteering with animal organizations.

For information, visit Efficient and Comprehensive Wireless Network Management.