Abstract
This paper addresses the issue of improving the transmission of video traffic across integrated hybrid 3G-WLAN networks. This improvement is accomplished by handing-over video traffic from certain sources from 3G to WLAN, once the channel capacity reaches a certain threshold. Without loss of generality, MPEG-4 video compressed traffic flow is used in a simulated hybrid 3G-WLAN network. The video traffic is simulated in this converged environment as a two dimensional Markov chain model The aggregate Markov chain is used to estimate packet loss probability, channel utilization and number of video sources that can be supported simultaneously at both 3 G and WLAN networks. The simulation results indicate that the hybrid network can support a significant number of 3G/4G users with relatively lower loss packet probability and improve the overall video traffic performance.
| Original language | English |
|---|---|
| Pages | 85-90 |
| Number of pages | 6 |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | GMC'2006: 2006 Global Mobile Congress - Beijing, China Duration: 9 Oct 2006 → 11 Oct 2006 |
Conference
| Conference | GMC'2006: 2006 Global Mobile Congress |
|---|---|
| Country/Territory | China |
| City | Beijing |
| Period | 9/10/06 → 11/10/06 |
Keywords
- Markov chains
- MPEG-4
- Video traffic over Heterogeneous Wireless Networks