Toronto Networking Seminar

A Cross-Layer Analysis of Session Setup Delay in IP Multimedia Subsystem (IMS) with EV-DO Wireless Transmission 

Admela Jukan
EMT-INRS, University of Quebec

Date:  Febrary  9,  2pm
Location: BA1220,  Bahen Center


Recently, the integration of wireless radio networks with backhaul and core networks has gained significant attention due to advances in air interfaces, emergence of new delay-sensitive applications and ever increasing proliferation of IP technologies towards the base stations.  Within standardization and research communities, efforts are underway to address the issues of end-to-end signaling delay in architectures integrating the radio access network based on CDMA2000 Evolution Data Only Rev. A (EV-DOrA) with the IP Multimedia Subsystem (IMS). Keeping signaling delay low, however, is a challenge due to the text-based nature of the Session Initiation Protocol (SIP), and, more significantly, due to the lossy and capacity constrained properties of wireless links.  This presentation will discuss challenges in developing a model to analyze the IMS session setup delay end-to-end and cross-layer. The cross-layer EV-DO radio link model presented is analytical, but practical, we believe, and verified by simulations and measurements.  We ask: can IMS be designed with a session setup performance that is reasonably independent of the radio link quality?


Admela Jukan received the M.Sc. degree in Information Technologies and Computer Science from the Polytechnic of Milan, Italy, and the Ph.D. degree (cum laude) in Electrical and Computer Engineering from the Vienna University of Technology (TU Wien), Austria. She is currently Associate Professor at EMT-INRS of University of Quebec and also Visiting Associate Professor at the University of Illinois at Urbana Champaign (UIUC). Prior to joining UIUC, she served as Program Director in Computer and Networks System Research at the National Science Foundation (NSF) in Arlington, VA, and she was Research Assistant Professor at the Georgia Institute of Technology in Atlanta, GA. Her current research interests are in wireless cellular networks and in control protocols and architecture for optical networks.