Traffic intensity based fixed-alternate routing in all-optical WDM networks
學年 94
學期 2
發表日期 2006-06-11
作品名稱 Traffic intensity based fixed-alternate routing in all-optical WDM networks
作品名稱（其他語言）
著者 Hwa-Chun Lin; Sheng-Wei Wang; Chung-Peng Tsai
作品所屬單位
出版者
會議名稱 2006 IEEE International Conference on Communications (ICC06)
會議地點 Istanbul, Turkey
摘要 This paper proposes a new fixed-alternate routing algorithm for all-optical WDM networks without wavelength conversion in order to reduce the connection blocking probability. The key idea in the proposed fixed-alternate routing algorithm is to try to route the traffics in approximately the optimal way. The multiple routing paths between each source-destination pair are arranged and used in descending order according to the traffic intensities obtained by solving a nonlinear multicommodity flow optimization problem. It is well known that finding the connection blocking probability is a very difficult task. Therefore, an objective function closely related to the connection probability is devised and used to formulate a nonlinear multicommodity flow optimization problem. Simulations are performed to study the performance of the proposed fixed-alternate routing algorithm. Our simulation results show that sorting the routing paths according to the optimally assigned traffic intensities in the proposed fixed-alternate routing algorithm can effectively reduce the connection blocking probability compared with sorting the routing paths according to hop counts in a typical fixed-alternate routing algorithm. In general, in all-optical WDM networks, a connection request that goes through a longer path experiences higher connection blocking probability than a connection request that goes through a shorter path. This is known as the fairness problem. Our simulation results show that the proposed algorithm yields better fairness than a typical fixed-alternate routing algorithm.
關鍵字 Telecommunication traffic;WDM networks;Optical wavelength conversion;Wavelength routing;Bandwidth;Optical switches;Wavelength conversion;Optical fiber networks;Wavelength division multiplexing;High speed optical techniques
語言 en_US
收錄於
會議性質 國際
校內研討會地點 無
研討會時間 20060611~20060615
通訊作者
國別 USA
公開徵稿
出版型式
出處
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/121234 )