Abhijit S. Pandya's ATM Technology for Broadband Telecommunications Networks PDF

By Abhijit S. Pandya

This textbook offers the entire most up-to-date info on all elements of every very important component to ATM - the most well liked telecommunications know-how of this decade. It demonstrates how ATM internetworks numerous incompatible telecommunications applied sciences and supply the high-speed, excessive bandwidth spine community that the complete telecom is converging towards.

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Figure 2-14 Algorithm for call setup request. Figure 2-15 Connection set up between two end systems through ATM signaling. Figure 2-15 illustrates how a call setup through the ATM works. First a request is signaled by end-user A to connect to end-user B. This request is routed through intermediate connections establishing a set up path. At that point the call request is accepted or denied by end-user B. If it is accepted, then the data flows along the same path. Finally the connection is torn down.

We briefly survey the research results currently available in the area of routing control in the literature. The previous work done in this field can be classified into two categories: discrete routing control [Aras 1994, Chang 1986, Katevenis 1987, Lang 1990, Muralidar 1987] and neural network based routing control [Rauch, 1988, Brown 1989, Brown 1990, Hiramatsu 1990, Lee 1993, Troudet 1991, Sen 1995]. The discrete routing control has been around since the early 70s with the wide use of digital computers and the desire to connect these computers together in a network.

This trend led naturally to the envisioning of the Information Super Highway based on the ATM technology. Such a large high-speed communication network requires a very flexible and highly adaptive routing control mechanism in order to accommodate very diverse and highly dynamic traffic patterns. Additionally, a routing controller has to be very fast in order to manage routing processes effectively in this high-speed network environment. One can easily see that there are two major requirements for the routing controller of the emerging ATM based highspeed telecommunication network: • high adaptability • extremely high speed routing operation Routing optimization can be formulated as a maximum matching problem of choosing maximum number of conflictfree cells from a connection request matrix in each time slot which is in the order of a few hundred nanoseconds in these high-speed communication networks.

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