On Physical Considerations in Design of Wavelength Grooming Optical Networks
نویسندگان
چکیده
This paper reviews physical design issues and challenges to meet the basic premise of grooming sub-wavelength capacity traffic in all-optical networks. We discuss technology issues in areas such as all-optical time division Multiplexing, Optical pulse generation, the types of lasers for such pulses, modulators and types of amplifiers, as well as optical timing extraction for high speed optical waveform measurement. We also review some issues and experiments that have been performed to support terabits OTDM/WDM systems.
منابع مشابه
Dynamic Traffic Grooming using Fixed-Alternate Routing in WDM Mesh Optical Networks
There is a mismatch between lightpath channel capacity and traffic request capacity in wavelength division multiplexed (WDM) optical mesh networks. Traffic grooming is needed to resolve this mismatch in an efficient way. We study the dynamic traffic grooming problem in WDM mesh networks using the fixed-alternate routing (FAR) approach. Based on the FAR approach, we propose the fixed-order groom...
متن کاملOn Traffic Grooming Choices for IP over WDM networks (Invited)
Traffic grooming continues to be a rich area of research in the context of WDM optical networks. We provide an overview of the optical and electronic grooming techniques available with focus on IP as the client layer. We discuss the various architectural alternatives available : peer, overlay and augmented models. We first provide a survey on the research work in the area of traffic grooming in...
متن کاملA Novel Protection Guaranteed, Quality of Transmission Aware Routing and Wavelength Assignment Algorithm for All-optical Networks
Transparent All Optical Networks carry huge traffic and any link failure can cause the loss of gigabits of data; hence protection and its guarantee becomes necessary at the time of failure. Many protection schemes were presented in the literature, but none of them speaks about protection guarantee. Also, in all optical networks, due to absence of regeneration capabilities, the physical layer i...
متن کاملArchitectural Considerations in the Design of WDM-Based Optical Access Networks
We describe a WDM-based optical access network architecture for providing broadband Internet services. The architecture uses a passive collection and distribution network and a configurable Feeder network. Unlike earlier papers that concentrate on the physical layer design of the network, we focus on higher layer architectural considerations. In particular we discuss the joint design of the ele...
متن کاملTraffic Grooming in Optical Networks: Decomposition and Partial LP Relaxation
We consider the traffic grooming problem, a fundamental network design problem in optical networks. We first review a typical ILP formulation considered in the literature, and we identify two challenges related to this formulation in terms of scalability and wavelengths fragmentation. We then propose a new solution approach that decomposes the traffic grooming problem into two subproblems that ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002