Optical local area network technologies

Kazovsky, L.G.; Fong, T.K.; Hofmeister, Tad

doi:10.1109/35.336010

Cited by 26 publications

(11 citation statements)

References 11 publications

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“…The other variant of the WDMA/SCMA scheme, referred to here as all-optical WDMA/SCMA, has been proposed recently by several research teams [170][171][172][173][174]. The principle, shown in Fig.…”

Section: Wdma/scmamentioning

confidence: 98%

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Multiple Access Techniques for Fiber-Optic Networks

Mestdagh¹

1996

Optical Fiber Technology

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Section: Wdma/scmamentioning

confidence: 98%

“…This all-optical WDMA/SCMA technique is currently implemented in the so-called CORD system, which is an experimental ATM packet-switched LAN [174,175]. The CORD network topology is a passive star for both payload and control channels.…”

Section: Wdma/scmamentioning

confidence: 99%

Multiple Access Techniques for Fiber-Optic Networks

Mestdagh¹

1996

Optical Fiber Technology

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“…It specifies the maximum number of packets per time slot that can be sent through the network in a non-blocking fashion. It is given by (3) z,,, = (Euve + l)(zH + zD + z, ) time slots (4) This equation assumes that the traffic statistics are such that packets on average will require E,,, hops to reach their destination. If the traffic statistics are such that the majority of packets require the maximum number of hops to reach their destination, then Eq.…”

Section: 3mentioning

confidence: 99%

A scalable recirculating shuffle network with deflection routing

Monacos

Sawchuk²

Proceedings of Massively Parallel Processing Using Optical Interconnections

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We describe a high-speed optical wide area network (WAN) architecture called the multi-cylinder ShuffleNet (MCSN). Its basic topology is a recirculating shuffle exchange network with an all-optical data path from source to destination. The network capacity and performance is improved by augmenting it with multiple parallel copies of the original topology called routing cylinders. This approach avoids the use of a global request/acknowledge mechanism by matching the rate at which packets can be input into the network to the rate at which packets can be transmitted through the network (without congestion). Packets are dynamically stored within the switching nodes (using only fixed delay line elements) and the links of the network, and congestion control within the network is handled by routing blocked packets onto alternative routing cylinders. The architecture is easily scalable, designed for bit-synchronous, packet asynchronous traffic and utilizes a simple distributed control scheme. Simulation results which demonstrate these features are given. IntroductionOptical interconnection networks offer the potential for bandwidth in the tens to hundreds of gigabitslsec over a given data path. Their primary limitation is that complex logic, data buffering and routing is difficult to perform in the optical domain. Our goal is to perform these functions as fast as possible while maintaining the data in all-optical form as much as possible to avoid electronicloptical conversions.Current optical communication networks fall into several categories: i) ring or bus topologies with optical interconnects [l]-[S]; ii) circuitlpacket switched networks for packet asynchronous traffic [9]-[ 111; iii) circuit switched networks using global electronic control with optical data paths in the switching nodes and links [12], 1131; and iv) packet switched optical routing networks for packet synchronous traffic [14]-[24]. Ring or bus topologies are simple to implement and maintain data in optical form while in the network but have only one data path for all communications. Circuitlpacket switched networks with optical point-to-point links and electronic paths within the switching nodes [9], [ 101 provide multiple communication paths 0-8186-7591-8196 $5.00 0 1996 IEEE Proceedings of MPPOI '96and allow for packet asynchronous traffic, but the link data rate on each path is limited by optoelectronic conversions. Additionally, circuit switched networks are limited by the requestlacknowledge cycle time for path establishment. The packet switched network described in [ 111 routes packet asynchronous traffic with optical switching nodes but requires monitoring the status of a switching node before sending a new packet into the network. Synchronously switched optical schemes provide multiple data paths with the enhanced throughput of optics, but these networks are not suitable for distributed networks where packet synchronization is not possible without the use of variable delay electronic buffers. Current optical network implementations do not off...

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“…Various techniques such as Wavelength Division Multiplexing (WDM), Subcarrier Multiplexing (SCM), Time Division Multiplexing (TDM) and Code Division Multiplexing (CDM) are developed to divide the bandwidth into multiple smallercapacity channels, each of which can operate at electronic processing speeds. Out of these, TDM and CDM are unattractive as they require high-speed synchronization [4]. Also SCM has the disadvantages such as lesser throughput due to the restriction that all the channels must reside within the bandwidth of a single optical fiber [4].…”

Section: Introductionmentioning

confidence: 99%

“…Out of these, TDM and CDM are unattractive as they require high-speed synchronization [4]. Also SCM has the disadvantages such as lesser throughput due to the restriction that all the channels must reside within the bandwidth of a single optical fiber [4]. Moreover, networks based on WDM technology have transited from the level of concept to experimental stage.…”

Section: Introductionmentioning

confidence: 99%

A dynamically reconfigurable WDM LAN based on reconfigurable circulant graph

Reddy

Reddy²

Proceedings of MILCOM '96 IEEE Military Communications Conference

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To meet the growing demand for terabit speeds, WDM LANs with multi-hop logical topologies have gained momentum iq recent past as they only require slowly tuneable transmitters and receivers.The reconfiguration process in present logical topologies changes the links of many nodes and may lead to divergence of reconfiguration process [l].To overcome this problem, a WDM LAN with dynamically changeable structure called RCG is developed. The throughput and average packet delay pe$ormunce of the proposed network are found to be superior to that of Torus network [2] and comparable to that of circulant graph [3].

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Optical local area network technologies

Cited by 26 publications

References 11 publications

Multiple Access Techniques for Fiber-Optic Networks

Multiple Access Techniques for Fiber-Optic Networks

A scalable recirculating shuffle network with deflection routing

A dynamically reconfigurable WDM LAN based on reconfigurable circulant graph

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