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  • Essay / Essay on Multicast - 1323

    Multicast Tree Algorithm in ATM Network EnvironmentPresentation:The use of optical fiber has significantly increased the network bandwidth. Data used in video on demand (VOD), distance learning, remote diagnostics, video conferencing and many other applications has come and gone in recent years. They all require the same data to be sent to multiple recipients. This operation is called multicast. Introduction: Asynchronous transfer mode (ATM) is the most implemented in high-speed networks. ATM is the CCITT's next-generation ISDN transmission system, Broadband ISDN (B-ISDN). B-ISDN is designed to provide communications services to subscribers over a wide range of bit rates from megabit to multi-gigabit. The main objective of routing multicast connections is to efficiently use network resources and establish fast connections for data transmission. The network is often defined by a graph G(V,E). Multicast routing protocols are used in practical systems such as multicast backbone (M bone). M bone chooses the shortest path to each destination using the IP routing mechanism. Multicast routing in ATM Switch performs two basic functions such as switching and queuing. PROBLEM DESCRIPTION:ATM NETWORKATM Network can be modeled by a connected graph G(V,E). The performance of multicast routing in a system can be measured by the following criteria. Connection establishment cost Ce: total number of VPs connected from the source to all destinations. . The VC connection between the source and destination is either a direct VP or a concatenation of multiple VPs. This is the cost of establishing a connection for subsequent multicasting. Cost of bandwidth (Cb) and switching (Cs): Cost of bandwidth ...... middle of paper ...... it relayNodes. The R-UP-MBS technique increases reliability without any delay and adds additional delay for MBS synchronization. In another technique, R-MP-MBS PER is improved and MBS synchronization is not possible in this technique, this is the only drawback of this technique. These two techniques offer an interesting solution for a wireless network based on a new generation relay. With these broadband multicast services, data can be transferred in emergency situations. This is an advanced version to transmit data in all emergency situations over a longer distance. WORK CITED: 1. KD Stephan, “We Need to Talk: Emergency Communications and Engineering Ethics”2. MC Valenti and N. Correal, “Exploiting macrodiversity in dense multi-hop networks and relays”3. http://proxy.ulib.csuohio.edu:2076/stamp/stamp.jsp?tp=&arnumber=4547521