Design of a photonic circuit switching network

2002 ◽  
Author(s):  
Albert K. S. Wong ◽  
Chin-Tau Lea ◽  
Wing Wah Yu ◽  
Shiu Y. Yuen ◽  
An Chen
2021 ◽  
Vol 105 ◽  
pp. 331-338
Author(s):  
Fu Xing Qin ◽  
Li Zhang ◽  
Zhong Wang

With the rapid development of communication technology, modern communication technology has been widely penetrated into modern national defense, science and technology, people's life and other fields, and has become a means to provide high-quality and seamless information communication between people and machines. With the rapid development of computer technology and the Internet, the traditional program-controlled switching technology has come to an end, and the soft-switch network based on IP technology and packet switching has gradually replaced the program-controlled switching network based on circuit switching and become the mainstream of today's communication network world. The rapid development of VOIP telephony reduces the cost of domestic and international long-distance telephony, benefiting consumers. Digital mobile communication expands channel capacity, improves service quality and promotes the rapid development of this industry. Based on the secondary development of the open source FreeSWITCH software, this paper develops a VOIP voice system based on IP technology to meet different user needs intelligently [1].


1990 ◽  
Vol 22 (04) ◽  
pp. 965-967
Author(s):  
Z. Khalil ◽  
G. Falin

A star-like circuit-switching network with multistage service is considered. Likelihood ratio ordering is used to show that there exists an optimal threshold for the mean number of messages processed through the network as a function of the input traffic intensity.


2016 ◽  
Vol 13 (14) ◽  
pp. 20160529-20160529
Author(s):  
Zhenqi Wei ◽  
Peilin Liu ◽  
Rongdi Sun ◽  
Zunquan Zhou ◽  
Ke Jin ◽  
...  

1984 ◽  
Vol 21 (4) ◽  
pp. 850-859 ◽  
Author(s):  
D. Y. Burman ◽  
J. P. Lehoczky ◽  
Y. Lim

Consider a network of nodes (switches) and connecting links. Each link consists of a group of channels (trunks). A call instantaneously seizes channels along a route between the originating and terminating node, holds them for a randomly distributed length of time and frees them instantaneously at the end of the call. If no channels are available, the call is blocked. For special networks with exponential call holding times, Erlang has shown that the steady-state probabilities are in product form. In this paper, we extend this work to general networks and show that if for each pair of nodes there is a unique route, then the blocking probabilities are in product form and are insensitive to the call holding-time distribution, which means that they depend on the call duration only through its mean.


2019 ◽  
Vol 8 (2S11) ◽  
pp. 2864-2872

This article approaches the design of parallel routing Clos and Benes switching networks in Communication Technology. In communication, the transmission of data with less traffic and low latency are the biggest challenges. The conventional packet switching circuits takes the more power and high area to overcome this problem parallel routing algorithms are proposed. Clos and Benes networks are designed for the circuit switching systems where the switching configuration will be rearranged and it’s relatively low speed. Most of the existing parallel routing algorithms are not practical those are fail to interconnects the inputs with the matched outputs with less traffic. In this article, we designed Clos and Benes network. Clos and Benes networks are the Non-blocking switching Networks. Clos Switching network provides the better results like low area and less delay when compare with the Benes Switching Network. Clos and Benes non-blocking switching circuits are designed by Verilog HDL, Synthesized and simulated by XILINX 12.1 tool


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