| Publisher | Institute of Electrical and Electronics Engineers | ||
|---|---|---|---|
| Format | 228.8KB PDF | Date added | 29 Apr 2008 |
| Topics | WiMAX (802.16), Mobile - Wireless Communications | ||
| Downloads | 12 | ||
IEEE 802.16e WiMAX is a promising new technology for broadband access networks. Amongst the class of applications that can be supported is real time video services (such as IPTV, broadcast of live events etc.). These applications are bandwidth hungry and have stringent delay constraints. Thus, scalable support for such applications is a challenging problem. To address this challenge, a combination of approaches are considered using multicast, layer encoded video and adaptive modulation of transmissions. Using these, algorithms are developed to ensure efficient, fair and timely delivery of video in WiMAX networks. The corresponding resource allocation problem is challenging because scheduling decisions (within a WiMAX base station) are performed in real-time across two dimensions, time and frequency.
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