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OPNET Technologies ©
2008
OPNET Technologies, Inc. |
Research: We investigate the performance of the WiMAX networks in supporting different applications such as VoIP, IPTV, etc. In our research we simulate WiMAX networks and study their performance in different environments with various numbers of users. We consider mobile and stationary users and try to propose novel solutions to enhance the performance of the network.
Title:
VoIP Traffic Scheduling in WiMAX Networks Popularity
of Voice over IP (VoIP) applications such as Skype, Google Talk, and MSN
Messenger along with emerging deployment of WiMAX networks is making VoIP
over WiMAX an attractive market and a driving force for both carriers and
equipment suppliers in capturing and spurring the next wave of
telecommunications innovation, though challenges remain. Optimization of
the VoIP call capacity over WiMAX networks is one such crucial challenge
and remains an open research issue. While conventional scheduling methods
have not considered the traffic characteristics of VoIP, in this paper, we
propose a traffic aware scheduling algorithm for VoIP applications in
WiMAX networks. We study the performance of our proposed method and
compare it with that of some conventional methods. The tradeoff between
delay and bandwidth efficiency is discussed, and it is shown that using
our scheduling method enhances the efficiency of VoIP over
WiMAX. OPNET Technologies, Inc. is a leading provider of solutions for managing networks and applications. OPNET's best-in-class solutions address application troubleshooting, application monitoring, network monitoring, network configuration management, network planning , and network simulation. OPNET’s solutions have been operationally proven in thousands of customer environments worldwide, including corporate and government enterprises, government and defense agencies, network service providers, and network equipment manufacturers. For more information about OPNET and its products, visit http://www.opnet.com/. |
