Improvement and analysis of voice/data traffic in VoIP
Kishor Sadafale, Sachin Barahate, Prashant B. Jawade · 2010
Voice over Internet Protocol (VoIP) is the technology used to transmit conversations digitally over the Internet. VoIP is being adopted globally and changing the landscape of telecommunications for businesses and consumers. A successful voice over Internet Protocol (VoIP) deployment requires careful consideration of and adequate planning for the system's long-term management requirements. Your deployment and integration plans must identify the methods and technologies through which you will monitor, support, and maintain reliability across the VoIP network. Voice traffic is considerably more sensitive to network conditions than normal data traffic and your management plans account for this fact. In this paper, we present a simple and viable approach to enhance the VoIP performance by implementing two queues along with a strict priority queuing on top of the 802.11 Medium Access Control (MAC) controller[III], e.g., in the device driver of the 802.11 cards. We find via extensive simulations that the proposed scheme is remarkably effective for the VoIP service with the non-real-time traffic thanks to the flow control mechanism of the TCP protocol, which is typically used for the non-real-time traffic today.