In last few years, there has been significant growth in the area of wireless communication. Quality of Service (QoS) is a critical issue in the design and management of WiMAX (Worldwide Interoperability for Microwave Access) networks. These applications include Voice over IP, multimedia services, like, video streaming, video conferencing etc. The WiMAX Mesh network is based on IEEE 802.16 standard. This paper purposes an architecture to analyze the Quality of Service for Video Conferencing and Voice Application in WiMAX network. For analysis, a WLAN network has been developed using a popular network simulator Opnet 14.0. In the end, results in the form of graphs are presented. Parameters that indicate quality of service, such as, throughput, network load and delay are analyzed for two types of service flows as defined in WiMAX. Results indicate that better quality of service is achieved by using real time service flows designed for specific applications.

1. Lehman, Scott. "Effects Explained: Delay". 1996. Retrieved on June 30, 2006.
2. IEEE 802.16-2004, "IEEE standard for Local and Metropolitan Area Networks — Part 16: Air Interface for Fixed Broadband Wireless Access Systems," Oct. 2004.
3. IEEE Std 802.16e-2005, "IEEE Standard for Local and metropolitan area networks--Part 16: Air Interface for fixed Broadband Wireless Access Systems--Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands," Feb. 2006.
4. Rohit A. Talwalkar, Mohammad Ilyas, Analysis of Quality of Service (QoS) in WiMAX networks. In Proceedings of IEEE International Conference on Networks, 2008, 1-8.
5. S.Sengupta, M. Chatterji, S. Ganguly, "Improving Qulity of VoIP Streams over WiMAX", IEEE Transactions on Computers,Vol. 5, 2008, 145-156.
6. WiMAX forum (2008a) www.wimaxforum.org.

Differentiated Services Video Conferencing Voip Wimax