Abstract
The mergence of VoIP and WLAN created a new wireless platform for voice service delivery, VoWLAN. This paper figured out the capacity bottleneck of VoWLAN, and analyzed the problems in current solutions such as M-M. A novel unicast based multiplexing scheme (U-M, unicast multiplexing) to improve the capacity and performance of VoWLAN was proposed. Both theoretical and simulation results showed that this scheme improved the voice capacity to nearly 100% comparing to the traditional un-multiplexed scheme, and reduced the packet lost ratio by 10% compared with the M-M scheme. Meanwhile, the U-M scheme is a power-saving scheme in the voice-oriented application as well. Therefore the proposed U-M scheme is an effective solution to increase the voice capacity of WLAN and improve the performance of VoIP service.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 132-137 |
| Number of pages | 6 |
| Journal | Beijing Daxue Xuebao (Ziran Kexue Ban)/Acta Scientiarum Naturalium Universitatis Pekinensis |
| Volume | 43 |
| Issue number | 1 |
| State | Published - Jan 2007 |
| Externally published | Yes |
Keywords
- ETE delay
- MAC
- Packet loss rate
- VoIP
- WLAN
ASJC Scopus subject areas
- General