Banyan switch

About: Banyan switch is a research topic. Over the lifetime, 242 publications have been published within this topic receiving 3452 citations.

Compact electronically aligned broadcast-enhanced all-optical switch

Abstract: All-optical switches are used for many different applications. Broadcast-enhanced switches allow connection of a single input channel to numerous output channels, thus increasing further the possible application span. A compact multichannel all-optical broadcast-enhanced switch is described. This switch setup allows electronic alignment thus requires only simple construction procedures. A special importance of the proposed switch is for multistage interconnection networks where the alignment plays a major role. The switch structure is described and experimentally demonstrated.

A package-level implementation of traveling-wave switch using PIN-diodes

Abstract: A single-pole single-throw switch constituting the transparent path in a reconfigurable switch matrix is presented, improving the availability of the switch matrix in case of an on-board power-fail. The design of the switch is based on the traveling-wave concept using packaged PIN-diodes on a thick-film ceramic substrate under the constraints on the number of PIN-diodes and power dissipation. The circuit design and analysis of the switch based on the concept of an artificial transmissionline are described. Unlike the traditional low-pass characteristics inherent to traveling-wave switches, high isolation is achieved by transforming the parasites of the PIN-diodes in the shunt arms to reveal band-pass characteristics besides assisting the assembly of the package. On-wafer measurements reveal an isolation ≥ 45 dB and an insertion loss ≤ 6 dB in the Ka-band downlink frequencies (17...22 GHz).

Atm cross‐connect switch using folded banyan switching network with bypass links

Abstract: A high-speed multiplex transmission system has recently been proposed based on ATM, where the information is divided into fixed-length blocks called cells, and transmitted on asynchronous multiplexing basis. As the switch to be used in the transit node in such a transmission system, various kinds of switching networks have been proposed, composed of two-input × two-output switch elements with internal buffers. Among those, the multistage buffered Banyan structure, which is a cascade connection of two Banyan networks as the distribution and routing networks, is of a distributed structure, being suited to LSI implementation. The network is a promising candidate since it realizes the self-routing and is stable against a variety of traffic. However, this switching network has a problem in that the delay is increased with the scale of the network, and the in-service expansion of the switching network is not easy. This paper proposes a new network topology of the Banyan network with bypass links, together with the self-routing method, and describes its performance. The network is composed of the distribution and routing networks with bypass links between individual unit switches. By transferring cells from the distribution network to the routing network through the bypass links at appropriate stages, the delay is reduced. The in-service expansion of the system is made easy.

Recovery of lost cells in banyan ATM switching networks using RS codes

Abstract: In order to cater for communications users' needs in terms of high speed, high bandwidth and error free reception, researchers have focused their attention towards B-ISDN/ATM in recent years. Since the major efficiency of ATM networks depends on the ATM switching, we have focused our attention towards high throughput in an ATM switch architecture. The banyan switch architecture is taken for our study. We have simulated an 8/spl times/8 banyan architecture with the proposed scheme of using RS coder and decoder. The performance of the proposed architecture in terms of cell loss and average delay versus the cell arrival rate is presented.

Design of a folded banyan switching network with by-pass links using a distribution cell sequence control

Abstract: The asynchronous transfer mode (ATM) is considered to be important as a key technology in realizing a broadband ISDN that can handle diversified services in a unified way. The high-speed burst multiple transmission system using ATM is proposed. This paper considers the folded Banyan network with by-pass links which is proposed as a cross-connect switch to be applied to the cross-connect MUX of the high-speed burst multiple transmission system. A routing method that preserves the time sequence of cells also is proposed and its cell transfer performance is analyzed. The proposed routing method is realized by a distributed control. It is shown that the method can be applied at the same time preserving the features of the folded Banyan network with by-pass links, which are the unified modularity and the expansion without interruption. For the performance evaluation, a method of analysis is presented which improves the approximation of the traditional analysis of the cell loss rate.