Capacity estimation of VoIP system based on IEEE 802.11b WLAN Under PCF mode
Liu Yuan-an · Journal of Chongqing University of Posts and Telecommunications · 2005
The system capacities of the G.711 VoIP system based on IEEE 802.11b WLAN under PCF mode and the effect of voice suppression to increase the system capacity are analyzed. Based on the theoretical analysis, the system simulation model is built to validate the analysis. The simulation results show that enlarging the sampling interval of the voIP packet can increase the system capacity of the VoIP system;moreover, the silence suppression technique can be used to increase the system capacity largely. The methods and conclusion in this paper can also be applyied to the VoIP system based on IEEE 802.11a and IEEE 802.11g standard and other voice coding algorithms.