This paper reports on an optical packet switching network demonstrator, constructed under the EPSRC-funded WASPNET project. Header deletion and insertion, routing, switching and contention resolution were demonstrated, facilitating optical packet transmission over 14 nodes. 2001 Optical Society of America OCIS codes: (060.2330) Fiber optics communications; (060.4250) Networks

Today’s communication WDM or OTDM networks, packetor circuit-switched, are characterized by hybrid architectures. In these architectures, electronic nodes are connected by optical links and switching is usually performed electronically using optoelectronic devices. However, the relatively low transmission bandwidth of the electronics and the associated optoelectronic interfaces, present an obst...

Traditional switching techniques need hundredor thousand-MIPS processing power within switches to support Gbit/s transmission rates available today. These techniques anchor their decision-making on control information within transmitted frames and thus must resolve routes at the speed in which frames are being pumped into switches. Isochronets can potentially switch at any transmission rate by ...

This research focuses on optimal post-intentional attack operation considering switching transmission systems. The applicable models for this process focus the application of bi-level optimization methods that are capable analyzing two possible scenarios in order to reduce time loss or departure from demand electricity system. main objective work is related maintaining minimum requirements allo...

Class-E amplifiers are a type of switching amplifier offering very high efficiency approaching 100% . In this paper, a topology and design methodology, which could be used for a transmission-line implementation of a class-E power amplifier, is presented. A simple transmission-line class-E load network is proposed that offers combined transformation of the load resistance down to a suitable leve...

This paper presents a fast channel switching method in Ethernet Passive Optical Network (EPON) system for IPTV service. Fast channel switching is one of the important features of successful IPTV systems. Users surely prefer IPTV systems with small channel switching time rather than a longer one. Thus a channel switching control module and a channel/permission list in EPON system’s ONU or OLT is...

The switching is an important part of the telecommunication networks over the years for transferring and handling voice and data through the traditional switching nodes existing in the telecommunication networks. Various developments were seen in the recent years which resulted in increasing data transfer capabilities of the transmission networks all over the world, however the switching speed ...

This paper focuses on the implementation and performance analysis of adaptive switching between STBC and SFBC OFDM systems [1].Here in this paper we proposed an adaptive transmission technique for MIMO OFDM systems using adaptive equalization algorithms (ZF,MMSE) where the channel response are unknown a priori and time variant. In this paper two selection criteria, correlation of the channel an...

This paper extends the modeling and analysis of packet switched multistage cube intercoimection networks to include the use of multiple-packet message formats. A multiplepacket message format is needed within an interconnection network when the message to be transmitted exceeds the network's packet size. The packet offset time is introduced and used to gauge the transmission rate differential b...