Comparative Analysis of Packet Switched Networks Over Circuit-Switched Networks
Khandkar, Md. Saidul Alam
Haque, A.K.M Fazlul
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The invention of the telephone, circuit-switching has been the dominant technology for voice communication as an analog communication technology and it has remained so well into the digital era. POTS or PSTN uses modems to transmit analog signal with low speed through a dedicated path or link which is establishing between the end systems. ISDN uses terminal adapter instead of modems to transmit digital data with high speed through a dedicated path or link which is establishing between the end systems. On the other hand, no physical dedicated connection is established in packet switching such as X.25, Frame relay, ATM. In packet switching data are transmitted with a high speed. This paper presents the performance evaluation of Circuit-Switched Network and Packet Switched Network. The main aim is to evaluate the performance of the circuit-switched networks and the packet switched networks with respect to their advantages, disadvantages and some other parameters. We focused on the advantages of Packet Switched Network in the basis of the efficiency, flexibility, resource sharing, robustness, responsiveness, and cost rather than Circuit-Switched Networks. In order to implement the differences between two types of Switched Network, the “Packet Tracer version 4.01” software has been used.
- February 2009