Communicating Systems & Networks: Traffic & Performance by Kenneth D. Kok

By Kenneth D. Kok

Techniques that be sure site visitors functionality in telecommunication platforms and a strategy that may be utilized to all stages of improvement are provided during this creation to telecommunication networks.

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Additional resources for Communicating Systems & Networks: Traffic & Performance

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12 provides an example of an architecture containing the two components. The telephone subscriber terminal is connected to the access switch (access layer). The media gateway (adaptation layer) carries out the conversion at transport level between the coded information at 64 kbit/s and IP or ATM packets. The signalling, like the data, are exchanged via the packet network. The media gateway controller acts as the call server, and controls the MGW to set up the calls. The setting up of the call between two subscriber terminal equipments is performed via the IP (or ATM) network under the control of the origin and destination media gateway controllers.

The vocabulary must be precise in order to avoid any confusion for example between subscriber traffic and 36 Communicating Networks: Traffic and Performance switched trafficc. 20 are usually adopted. 20. Traffic matrix of a node The corresponding traffic intensities are usually expressed in erlangs. We obtain the following expressions: User (subscriber) traffic: which characterises the total activity of subscribers in erlangs. Network traffic: Traffic switched by the node: which is the load to be handled by the node: Subscriber traffic switched: TD + TA + TL = TUD + TUA - TL, which characterises the number of subscriber calls to be handled.

The RNSs form the access network. They include as before radio resources, but with higher bit rates in this case, and the RNC. e. UMTS terrestrial radio access network, for the general public network) consists of radio resources as before (but with a higher bit rate, the BTS becomes Node B), and of the RNC (radio network controller) which controls all the B Nodes of the UTRAN. The core network is quite similar to that of the GPRS, but a distinction is now drawn between two domains: the circuit switched domain (CS) and the packet switched domain (PS).

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