Abstract:
Nowadays, Voice over IP (VoIP) is a major
and challenging task for communication
technology. In this paper, we focus on VoIP
which transmits voice over packet switched
networks such as LANs or WANs. Adding
security to a VoIP system, the quality of service
and performance of the system are at risk. The
contribution of this paper has two main parts;
firstly it illustrates registration call setup using
Diffie-Hellman Key Exchange Algorithm.
Secondly, it evaluates two key performance of a
VoIP: delay and bandwidth using an analytical
simulator. The processing steps of this paper
are: the Key Exchange Algorithm generates a
key to provide authentication. The generated
key is used by AES Algorithm to secure the
signaling and voice traffic within a VoIP system
based on SIP (Session Initiation Protocol)
server. In addition, Counting Process in
Stochastic Processes is also used for call
breakdown.
Description:
First and fore most, I wish to express my deepest gratitude to my parents and my relations for their encouragement, understanding and support throughout the period of doing my Ph-D candidate.
Finally, my special thanks are due to all my teachers who taught me and gave their knowledge to me from kindergartens ( primary school, high school, UCSY ) to UCSM.
