rwa 中文意思是什麼

Disposes the switch in the network is decided to the network performance improvement by the network analysis situs and the size, and the serviceable wave length number and uses rwa algorithm

在網路中配置轉換器對網路性能的改善取決于網路拓撲和大小，及可用波長數和所用的rwa演算法。

The cost - effective survivable scheme in otn and key technology, primary path and protection path routing and wavelength assignment ( rwa ) are the topics in this thesis

本文的研究重點是有成本效益的光層保護方案與關鍵技術以及工作通道與保護通道的路由與波長分配問題。

To simply introduce the current status, trend and significance of research on all - optical network and rwa ; 2

介紹了近年來國內外光網路及其rwa技術的研究現狀、發展趨勢和研究意義； 2

Therefore all - optical networks based on the concept of wdm and wavelength routing rwa ( routing and wavelength asignment, rwa ) is considered as a candidate for the next generation transport network

因此利用wdm傳輸技術以及選路和波長分配rwa （ routingandwavelengthalgorithm ， rwa ）技術的光傳送網是下一代高速骨幹網最具競爭力的候選者。

To analyze some key technologies of optical network relative with rwa in detail, such as transmission, switching and internetworking ; to emphasize on the research of function, fabric and performance of optical cross - connection ; to carry out numerical simulations for crosstalk introduced by optical cross connect and to present measurements for suppressing it such as doubly filtering, fixing optimum decision threshold and appropriately choosing the number of multiplexed wavelengths ; 3. to research the fundamental principle and some problems relative with rwa, including the type of optical network, the type of traffic, the type of service, the survivability of optical network ; to classify and compare rwa algorithms and particularly research some dynamic rwa algorithms ; 4. to present reserved light - path and classify network resource such as used, unused and reserved status, to emulate establishment of all - optical connection in optical network through modified rwa algorithm and show effectively reducing setup time of all - optical connection utilizing reserved light - path ; to research rwa algorithms of multi - fiber network, to present new link weight functions dependent on node degree, unused fiber ( s ) per wavelength - layer and routing policies, to perform emulation of rwa based wavelength layer graph applying new link weight functions and show them make algorithms better performance and network lower blocking rate ; 5

詳細分析了與rwa相關的光網路關鍵技術，包括傳輸、交換、組網等，重點研究了光交叉連接的功能和結構、性能，對其引入的串擾進行了詳細分析，選擇恰當的器件參數進行了數值模擬，並提出了抑制措施（如雙重濾波、優化判決門限、選擇恰當的復用波長數） ; 3 .研究了光網路的r認叭的基本原理、與r認叭的幾個相關問題（光網路類型、業務類型、流量類型、光網路生存性） 、 r認人演算法的分類和比較，具體研究了幾種動態r場人演算法; 4 .研究了以全光連接建立時間為優化目標的r認認演算法，提出預置光路的概念，對網路資源進行狀態分類（佔用、未佔用、預置） ，利用改進的r認叭演算法模擬，預置光路可為部分新到的連接請求快速建立連接，從而提高網路性能;研究了以多光纖網路連接阻塞率為優化目標的r認城演算法，提出了以節點度數、每個波長分層的空閑光纖數以及路由策略決定的幾種鏈路權重函數，利用基於波長分層圖模型的并行r場人演算法模擬，利用新的鏈路權重函數使得演算法具有更優的性能，使網路具有更低的連接阻塞率。

For the purpose of effectively utilizing resource of network, it is good method that rwa algorithm be performed in optical network

為了充分有效地利用網路資源，必須針對光波長網路執行有效的路由和波長分配（ rwa ）演算法。

Dynamic fuzzy controlled rwa algorithm for ip gmpls over wdm networks

Ip gmpls于wdm光纖網路架構下模糊邏輯控制rwa演算法

This paper describes solving the static rwa problem, an aspect of te problem in optical network, with simulated annealing algorithm. the static rwa problem is to allocate proper route and wavelength for a set of static requests on a wdm network with and without oxcs which physical topology is known

本文研究了用模擬退火演算法解決光網路業務量工程中靜態rwa問題，在已有網路上，根據多個業務需求，合理分配網路資源，完成端到端通路的建立，達到一定的優化目標。

It is not practical to supply full wavelength converter in a network because of some problem such as long price and complex techniques. so no wavelength converter ( nwc ) and spare wavelength converter ( swc ) are considered in our following chapter. chapter 3 : prototype of ilp model of static rwa issue is proposed here

由於光跡是較新的一種設計方案，現有的光跡模型只是最基本最簡單的模型，還是很粗糙的，並且還沒有涉及波長一致性約束，因此，本章在改進了光跡模型描述的基礎上，增加了考慮到波長一致性條件時光跡及其保護模型的描述，建模和模擬。

Another topic of this paper is rwa algorithms of primary path and protection path. in order to improve survivability of optical network, a new routing and wavelength assignment algorithms - diverse fiber physical routing algorithms is presented

文中從提高網路生存性角度出發，對鏈路不相關演算法進行了改進，提出了一個新的路由波長分配演算法?光纖物理路由最大不相關演算法。

To study the application of rwa for dynamically provisioning bandwidth and realizing protect & restore in optical network, and the application of optimization of setup time of all - optical connection and blocking rate in multi - fiber network

5 .研究了rwa為光網路動態指配帶寬和實現網路的保護與恢復的應用，以及全光連接建立時間和多光纖網路連接阻塞率的優化的應用。

To compare the results of simulated anneal algorithm on the static rwa problem, a heuristic algorithm is introduced as reference

為了衡量模擬退火演算法解決靜態rwa問題的結果，採用了一種啟發性演算法作為參考。

In this paper both the key technologies of physical layer of optical network and rwa of optical network were discussed in detail as follow : 1

為此，本文對光網路物理底層關鍵技術和光網路rwa技術進行了詳細研究，主要工作包括； 1

It is the key problem that how to switch an effective algorithm and available protocol to make up light - paths as well as solving rwa problem

Wdm光網路中的一個核心問題就是如何選擇有效的演算法和協議來建立光路，也就是如何解決rwa問題。

We can divide rwa into static and dynamic according to different traffic request. a lot of method have put to met the demand such as linear - programing or some heuristic algorithms

根據業務請求提出的方式不同，可以大致分為動態和靜態rwa問題，本文主要對研究對象為靜態rwa問題。

Our discussion consists of 3 main components : the installation of protections, ilp of rwa issue and a new optimization method in wdm networks, which is called lihgt trail

第四章重點介紹了一種新的設計方案? ?光跡（ lighttrail ） ? ?的概念，協議及其優化模型。光跡是區別于光路的設計。

In the first step, the adaptive fuzzy limits are evaluated based on average transmission cost pertaining to ten network statuses. the second step is to compare the proposed algorithm with periodic measurement of traffic in atm networks in six network situations to show that the proposed fc - rwa algorithm can provide better network transmission

目前部分這類演算法使用網路的平均流量來判斷是否可以加入新的連結，這的確是一個較簡單的方式，但是我們也無法保證網路資料的傳遞會依循著平均流量做很平順的傳送，如此的判斷將會顯得很不精確，甚至會出現大量資料遺失的情況。

This paper proposes a dynamic rwa scheme using fuzzy logic control on ip gmpls over wdm networks to achieve the best quality of network transmission

Gmpls是由ietf所制定的標準，在gmpls的網路架構下，封包傳送必須先建立起一條虛擬的路徑，利用cr - ldp或rsvp - te等演算法，以達到qos的功能。

Based on current max - rwa model, the extended max - rwa model is presented by introducing limited - range wavelength conversions. considering signal distortion introduced by wavelength conversions, we propose a new optimization objective, which is to establish the maximum number of connections with the least number of wavelength conversions

?在現有max - rwa模型的基礎上提出了波長轉換范圍受限條件下的擴展的max - rwa模型，在考慮了波長轉換器對信號傳輸造成的損傷的基礎上改進了優化目標，新的優化目標要求網路建立的連接數最大並使用盡可能少的波長轉換器。

Routing and wavelength assignment ( rwa ) algorithm is the key problem of mplms control layer. a dynamic routing and wavelength assignment ( rwa ) algorithm with the design pr otection is proposed, with load balance and capacity constraint of physical links taken into account

路由和波長分配（ rwa ）是mplms控制層面的一個重要問題，本文基於考慮鏈路負載均衡和容量限制提出了一種具有保護設計的動態路由和波長分配演算法。