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1. 发明授权

US07599621B2 Trail engineering in agile photonic networks 有权
标题翻译：敏捷光子网路径工程
公开(公告)号：US07599621B2
公开(公告)日：2009-10-06
申请号：US10952325
申请日：2004-09-28
申请人： John Peter Guy , Mukul Katiyar , Robert Alain Nadon , Rajender Rao Nednur , Christian Scheerer , Jonathan Titchener
发明人： John Peter Guy , Mukul Katiyar , Robert Alain Nadon , Rajender Rao Nednur , Christian Scheerer , Jonathan Titchener
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04J14/0241 , H04J14/0284
摘要： An agile transparent network with a trail routing and switching (also called “engineering”) mechanism is provided that enables efficient use of regenerators and wavelengths available in the network, while maintaining a very efficient time-to-service. The trail engineering mechanism allows fast, automatic establishment of new connections based on the current network architecture, connectivity and loading and also on conditions in the connection request. Selection of regenerator sites and of the wavelengths used on each regenerator segment is performed with optimal use of current network resources, while ensuring that the quality of the selected trail is adequate for the respective call. The mechanism provides for both distance and performance balancing, and it optimizes the network response time.
摘要翻译：提供了具有路径路由和交换（也称为“工程”）机制的敏捷透明网络，其能够有效地利用网络中可用的再生器和波长，同时保持非常有效的服务时间。轨迹工程机制允许基于当前网络架构，连接和加载以及连接请求的条件快速，自动建立新连接。在优化使用当前网络资源的情况下，对再生器位置和每个再生器段使用的波长进行选择，同时确保所选路径的质量对于相应的呼叫是足够的。该机制提供了距离和性能平衡，并优化了网络响应时间。

2. 发明授权

US07171124B2 Wavelength routing and switching mechanism for a photonic transport network 有权
标题翻译：光子传输网络的波长路由和切换机制
公开(公告)号：US07171124B2
公开(公告)日：2007-01-30
申请号：US09909265
申请日：2001-07-19
申请人： Anthony Vernon Walker Smith , Jonathan Titchener , John Peter Guy , Robert Alain Nadon
发明人： Anthony Vernon Walker Smith , Jonathan Titchener , John Peter Guy , Robert Alain Nadon
IPC分类号： H04B10/08 , H04B17/00 , H04J14/02
CPC分类号： H04J14/0241 , H04J14/0221 , H04J14/0246 , H04J14/0257 , H04J14/0268 , H04J14/0269 , H04J14/0283 , H04J14/0284
摘要： A connection between a source node and a destination node is automatically routed and switched in a WDM photonic network, on receipt of a connection request. A switching and routing mechanism selects a plurality of valid link paths using a path tree, where invalid branches are eliminated based on constraints received in the connection request, and on a link and path cost functions. A regenerator placement tree is used for determining a plurality of viable regenerator paths for each valid link path. On the regenerator placement tree, non-viable branches are eliminated based on constraints received with the request and on regenerator availability at the intermediate nodes along the respective path, and on the specification of these available regenerators. Next, the switching and routing mechanism assigns a set of wavelengths to each viable regenerator path, and estimates the performance of the path using a Q estimator. The regenerator paths are ordered according to their performance and the switching and routing mechanism attempts to setup a paths to serve the request, starting with the best path.
摘要翻译：在接收到连接请求后，源节点和目的地节点之间的连接将自动路由并切换到WDM光子网络中。切换和路由机制使用路径树选择多个有效的链路路径，其中基于在连接请求中接收的约束以及链路和路径开销功能来消除无效分支。再生器放置树用于为每个有效的链路路径确定多个可行的再生器路径。在再生器放置树上，基于通过请求接收的约束和沿着相应路径的中间节点处的再生器可用性以及这些可用再生器的规格来消除不可行的分支。接下来，切换和路由机制为每个可行的再生器路径分配一组波长，并且使用Q估计器估计路径的性能。再生器路径根据其性能进行排序，切换和路由机制尝试设置一条路径来服务请求，从最佳路径开始。

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