As day by day application grows internet requires large amount of bandwidth. Optical Burst Switching (OBS) is the next generation optical Internet with IP over WDM as the core architecture. It can achieve a balance between Optical Circuit Switching (OCS) and Optical Packet Switching (OPS). Optical network supports huge bandwidth and transmits data at an average rate of 50Tb/s. But we need to ex...

TV distribution is changing rapidly as traditional analog systems are replaced by their digitized counterparts, which are more interactive and use bandwidth more efficiently. Existing digital distribution systems generally rely on installed communal cabling to deliver TV signals to household set-top boxes. Although this approach has the advantage of requiring a low initial capital investment, i...

\The MainStreetXpress core services node-a versatile ATM switch architecture for the full service network," IEEE J. \Multicast contention resolution with single-cycle windowing using content addressable FIFO's," IEEE/ACM Trans. \Input versus output queueing on a space-division packet switch," IEEE Trans. \32 32 shared buuer type ATM switch VLSI's for B-ISDN's," IEEE J. Select. \A 160-Gb/s ATM s...

With the rising popularity of the Internet there have arisen corresponding requirements for network reliability, efficiency, and service quality. Internet service providers are responding to these developments by critically examining every aspect of their operational environment, looking for opportunities to scale their networks and optimize performance. In this context, traffic engineering has...

The Internet is emerging as the new universal telecommunication medium. IP over WDM has been envisioned as one of the most attractive architectures for the new Internet. Consequently survivability is a crucial concern in designing IP over WDM networks. This paper presents a survey of the survivability mechanisms for IP over WDM networks. A number of optical layer protection techniques have been...

Given the ever increasing demand for network bandwidth, and the recent phenomenal advances in optical wavelength division multiplexing (WDM) networking technologies, a major component of the Next Generation Internet will be an Internat protocol (IP)-based optical WDM network. As IP over WDM networking technologies mature, a number of important architectural, management and control issues have s...

The evolving multimedia services are foreseen to be delivered to customers over heterogeneous transport networks. The ATM technology has been considered as the most obvious choice, but other transporting concepts have also been studied and entirely new ones suggested, especially, for IP based communications. Diversity in transporting concepts implies that network nodes, such as switches and rou...

We investigate the topology design in IP backbone networks while exploiting both the advantages of IP routing and optical networking. The emerging WDM and optical switching technologies enable the use of optically switched circuits to interconnect routers, which may not have direct fiber links with each other, in an IP-over-WDM network. All these “light circuits” form the underlying topology of...

Multiprotocol Label Switching (MPLS) network Operation and Management is crucial for Service Providers (SPs), in order to timely deliver IP Connectivity Services with QoS assurance based on Service Level Agreements (SLAs) to individual and corporative users. Seamlessly integration with underlying optical infrastructure is also a main issue. This paper presents some techniques that face the prob...

The emerging Ubiquitous Sensor Network (USN) makes connection less datagrams and short event packets get popular. A large number of short term event packets of USN can cause serious problems, such as interrupt handling overhead and context switching overhead. Furthermore, heavy load of the packet security methods needs enough processing power. Then, the more USN develops, the more network overh...