The design and implementation of a multicast real-time multimedia protocol

Abstract

Many multimedia applications require guaranteed Quality of Service(QoS) in communication networks. Typically, the QoS includes bandwidth, delay, and delay jittel: This paper presents a real-time protocol to support multimedia communications in which the connections are established with eflcient resource reservation and proper admission control. During data transmission, the rate, jitter control, and packet scheduling techniques are employed to fulfill the pegormanee contract. The protocol also incorporates multicast function to provide group communications. This protocol is implemented on a high-speed network which consists of interconnected ATM switches, FDDI networks, routers, and hosts. Experiments have been carried out to evaluate the effectiveness of the QoS guaranteedprotocol. Measured results indicate that the proposed protocol peflorms well to guarantee the QoS in terms of bandwidth, delay, and delay jittel:The improvement in communication technology has made it possible to provide multimedia applications over high speed networks. Video, audio, and image are the primary media in multimedia applications, such as video on demand(VOD), distance learning, and video conference. To have better representation of these information, it is necessary to ensure some performance parameters, such as bandwidth, delay, delay jitter, and loss rate, on transmission networks. ATM, FDDI, and 100VG-AnyLAN are the typical network architectures that offer guaranteed performance '