25-10-2012, 12:55 PM
End-to-End QoS for Differentiated Services and ATM Internetworking
ABSTRACT
The Internet was initially design for non real-time data communications and hence does not provide any Quality of
Service (QoS). The next generation Internet will be characterized by high speed and QoS guarantee. The aim of this paper is
to develop a prioritized early packet discard (PEPD) scheme for ATM switches to provide service differentiation and QoS
guarantee to end applications running over next generation Internet. The proposed PEPD scheme differs from previous
schemes by taking into account the priority of packets generated from different application.We develop a Markov chain model
for the proposed scheme and verify the model with simulation. Numerical results show that the results from the model and
computer simulation are in close agreement. Our PEPD scheme provides service differentiation to the end-to-end applications.