UDP Traffic Behaviors Over eXplicit Multicast

Abstract

Recently the rapid use of the internet, a huge number of applications involve the transmission of packets from one sender to a group of receivers. Group communication became important because number of users needed to communicate and collaborate with each other. Several technologies have proposed to support group communication service. Explicit Multicast (Xcast) is a one of the proposed multicast scheme to support small group multicast. Since the UDP (User Datagram Protocol) is most common transport protocol used for multicast, since UDP is not reliable protocol, so packet might be lost or delivered out of order. This paper has tested the UDP traffic behaviors flow in Xcast technology and compare it with normal UDP traffic behavior. The test was carrying out using NS2 (Network Simulation 2). The results of simulation reflect a better QoS performance parameters compared with UDP traffic in Xcast and normal UDP traffic