VoIP / Multimedia over WiMAX (802.16)

Maneesh Bakshi

Abstract

The paper discusses the implementation of Voice over IP (VoIP) and IP Multimedia Subsystem services (IMS) over the much sought after wireless standard WiMAX (802.16). The key issues addressed are : Introduction to the working of VoIP and multimedia transmission over wireless. The softswitching technique for compatibility with WiMAX. The challenges being faced that need to be overcome for successful deployment and their solutions. The pre-standard installations and developments happening around the world at this time. The various products offered by the vendors compliant to the technology, and the impact of these developments on the existing Telecom and Satellite/CableTV industry.

Keywords - WiMAX, VoIP, Multimedia, IMS, 802.16, SIP, H.323, IPTV, Softswitch

Table of Contents

1. Introduction to VoIP
   • 1.1 How does VoIP work?
   • 1.2 Signaling Protocols
     • 1.2.1 H.323
     • 1.2.2 Session Initiation Protocol (SIP)
   • 1.3 Softswitch
   • 1.4 Main Challenges
     • 1.4.1 Voice Quality
     • 1.4.2 Security
     • 1.4.3 E911/CALEA Support
   
   
2. Introduction to IMS
   • 2.1 WiMAX IPTV
   • 2.2 How does it work?
   • 2.3 Services offered
     • 2.3.1 Personal Video Recorder
     • 2.3.2 Interactive TV
     • 2.3.3 PC-TV
   
   
3. WiMAX - Quality of Service (QoS)
   
   
4. Impact on the Telecom and Satellite/Cable TV Industry
   
   
5. Recently Launched Products
   
   
6. Pre WiMAX Happenings and Industry Forecasts
   
   
7. Summary
   
   
8. References
   
   
9. List of Acronyms