RATE CONTROL OF REALTIME STREAMING APPLICATIONS IN WIRELESS NETWORKS

In wireless networks, packet loss may be due either to congestion or to channel error. Thus, it is necessary to differentiate between packet loss due to wireless channel errors and that due to congestion. To apply this concept to real-time applications, we consider a rate control method without retransmission for UDP traffic. For implementation of rate control, we utilize a rate control module at the application layer and use NS-2 to determine the performance of adaptive rate control. The results show that the adaptive rate control scheme has a higher throughput than that of the rate control scheme without loss classification. Also, packet loss with adaptive rate control is approximately the same as with rate control without loss classification