Title: Toward Achieving QoS Guarantees in Mobile Ad Hoc Networks

Presenter: Lloyd Greenwald

Abstract:

Quality of Service (QoS) guarantees enable successful deployment of
multimedia applications, such as voice and video for military and
disaster relief, on mobile ad hoc networks (MANETs). While robust
routing protocols are necessary to ensure connectivity, the connected
network may not be useful if the traffic flows of high-priority
applications cannot receive the bandwidth and timing guarantees they
require. In this talk, I explore various mechanisms for moving toward
QoS guarantees in MANETs. In particular, I provide empirical studies of
decentralized mechanisms that provide differentiated services to packets
of varying priority traffic flows, and provide local monitoring of
traffic rates and rapid network-wide corrective responses to maintain
required rates for the highest priority traffic. These mechanisms are
complementary to QoS solutions at the physical, MAC, or network layers.

(joint work with Harpreet Arora)

Presenter Bio:

Lloyd Greenwald received a Ph.D. and a Sc.M. in Computer Science from
Brown University and a B.S.E. in Computer Science and Engineering from
the University of Pennsylvania. His recent research efforts have
explored a variety of topics including quality of service in mobile ad
hoc networks, machine learning, software testing, medical informatics,
and educational robotics. Dr. Greenwald has previously worked at AT&T
Bell Laboratories and is currently an Assistant Professor of Computer
Science and Director of the Intelligent Time-Critical Systems Lab at
Drexel University.


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