An UDP-based real time protocol for the Internet

Nestor Becerra Yoma, Juan Hood Llanos, Carlos Busso Recabarren

DOI: 10.14209/its.2002.287

Evento: 2002 International Telecommunications Symposium (ITS2002)

Keywords:

Abstract

"Generally, real-time applications based on UDP protocol generate large volumes of data and are not sensitive to network congestion. In contrast, TCP traffic is considered \u201cwell-behaved\u201d because it prevents the network from congestion by means of closed- loop control of packet-loss and round-trip-time. The integration of both sorts of traffic is a complex problem, and depends on solutions such as admission control that have not been deployed in the Internet yet. Moreover, the problem of QoS and resource allocation is extremely relevant from the point of view of convergence of streaming media and data transmission on the Internet. In this paper a real-time protocol is proposed to employ the reduction in bandwidth allocated to TCP applications and packet-loss as desired responses to adapt the UDP packet-rate. The method is tested in a real Internet connection and seems to offer a good compromise between conservative TCP-friendly protocols, and the ordinary UDP open-loop scheme."

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