LDA+: A TCP-friendly adaptation scheme for multimedia communication

In this paper, we present an end-to-end adaptation scheme, called the enhanced loss-delay based adaptation algorithm (LDA+), for regulating the transmission behaviour of multimedia senders In accordance with the network congestion state. LDA+ uses the real-time transport protocol (RTP) for collecting loss and delay statistics which are then used for adjusting the transmission behaviour of the senders In a manner similar to TCP connections suffering from similar losses and delays. Performance results collected using simulations and measurements over the Internet suggest the efficiency of LDA+ in terms of network utilization, congestion avoidance and fairness towards competing TCP connections.