SwiTching And tRansmission (STAR)

交换和传输 (STAR)

基本信息

批准号：
EP/K016873/1
负责人：
Jaafar Elmirghani
金额：
$ 45.37万
依托单位：
University of Leeds
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2013
资助国家：
英国
起止时间：
2013 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FK016873%2F1
关键词：
SwiTching tRansmission STAR

项目摘要

The Internet power consumption has continued to increase over the last decade as a result of a bandwidth growth of at least 50 to 100 times. Further bandwidth growth between 40% and 300% is predicted in the next 3 years as a result of the growing popularity of bandwidth intensive applications. Energy efficiency is therefore increasingly becoming a key priority for ICT organizations given the obvious ecological and economic drivers. In this project we adopt the GreenTouch energy saving target of a factor of a 100 for Core Switching and Routing and believe this ambitious target is achievable should the research in this proposal prove successful. A key observation in core networks is that most of the power is consumed in the IP layer while optical transmission and optical switching are power efficient in comparison, hence the inspiration for this project. Therefore we will introduce energy efficient optimum physical network topologies that encourage optical transmission and optical switching at the expense of IP routing whenever possible. Initial studies by the applicants show that physical topology choices in networks have the potential to significantly reduce the power consumption, however network optimization and the consideration of traffic and the opportunities afforded by large, low power photonic switch architectures will lead to further power savings. We will investigate a large, high speed photonic switch architecture in this project, minimize its power consumption and determine optimum network physical topologies that exploit this switch to minimize power consumption. We will design new large photonic switch fabrics, based on hybrid semiconductor optical amplifiers (SOA) / Mach Zehnder interferometers as gating elements to minimise the switching energy per bit, and plan to optimize the network architecture making use of these new switch architectures and introduce (photonic) chip power monitoring to inform higher layer decisions. Networks are typically over provisioned at present to maintain quality of service. We will study optimum resource allocation to reduce the overprovisioning factor while maintaining the quality of service. Protection is currently provided in networks through the allocation of redundant paths and resources, and for full protection there is a protection route for every working route. We will optimize our networks to minimize power wastage due to protection. The power savings due to optimum physical topology design, optimum resource allocation, optical switching instead of IP routing, more efficient photonic switches and energy efficient protection can be combined and therefore the investigators and their industrial collaborators BT, Alcatel Lucent and Telekomunikacja Polska, believe that an ambitious factor of 100 power saving in core networks can be realised through this project with significant potential for resulting impact on how core photonic networks are designed and implemented.

由于带宽至少50至100倍，在过去十年中，互联网功耗一直在增加。随着带宽密集型应用的日益普及，未来3年预计将在未来3年中进一步的带宽增长。因此，鉴于明显的生态和经济驱动力，能源效率越来越成为ICT组织的关键优先事项。在这个项目中，我们采用绿色节能目标100倍的核心切换和路由，并认为如果该提案中的研究证明成功，这一雄心勃勃的目标是可以实现的。核心网络中的一个关键观察结果是，大多数功率都在IP层中消耗掉，而光传输和光学切换相比具有效率，因此是该项目的灵感。因此，我们将引入节能的最佳物理网络拓扑，以尽可能以IP路由为代价，鼓励光学传输和光学切换。申请人的初步研究表明，网络中的物理拓扑选择有可能显着降低功耗，但是网络优化以及对流量的考虑以及大型低功率光子开关体系结构提供的机会将导致进一步的动力节省。我们将研究该项目中的大型高速光子开关架构，最大程度地减少其功耗，并确定最佳网络物理拓扑，以利用此开关以最大程度地减少功耗。我们将基于混合半导体光放大器（SOA） / MACH ZEHNDER干涉仪设计新的大型光子开关织物作为控件元素，以最大程度地减少每个位的开关能量，并计划优化网络体系结构，利用这些新的开关体系结构并引入（Photonic）CHIP电源监测以提供更高的层面层面的决定。目前，网络通常已经过度提供，以维持服务质量。我们将研究最佳的资源分配，以减少服务质量的过度配置因素。当前通过冗余路径和资源的分配在网络中提供保护，为了充分保护，每个工作路线都有一个保护路线。我们将优化我们的网络，以最大程度地减少由于保护而减少电力浪费。可以组合由于最佳的物理拓扑设计，最佳资源分配，最佳资源分配，光学切换而不是IP路由，更有效的光子开关和节能保护，因此可以结合使用，因此，调查人员及其工业合作者BT，Alcatel Lucent和Telekomunikacja Polska可以在核心方面促进核心的范围，从而在核心方面造成了重大影响，从而可以通过这一积极的核心来实现这一目标，从而实现这一目标，从而实现这一目标，从而实现了这一点，从而可以通过这种影响来实现这一目标。并实施。