Department of Systems and Computer Engineering
Ottawa, Canada

Dr. Roshdy Hafez: Publication Abstract

Publication: P.R.Larijani and R.H.M.Hafez,"A Framework for Distributed Access Control in Multimedia Wireless CDMA Networks"
Abstract: This paper addresses some challenges that face multimedia CDMA wireless networks.  We highlight some problems related to power assignment, admission control and other radio resource management functions.  At the core of our approach is a novel definition of a universal QoS index.  The proposed QoS vector can easily be defined on a network wide basis and be negotiated during the call setup phase.  Furthermore, we show that it is possible for radio resource managers to assess the radio resource requirements of the new connection based on the proposed QoS vector and to participate effectively in the end-to-end call setup negotiation.  The paper also introduces a simple and effective method for access control to CDMA networks and a linear power assignment scheme to complement the proposed admission control strategy.