CAJ | 학술논문

为解决波长路由WDM光网络中波长通道的分布式动态建立和拆除问题,已经有多个分布式波长通道建路算法被提出.但新提出的算法都是只跟经典算法,如后向资源预留BRP和前向资源预留FRP等各自具有自身所不能克服的缺陷.本文在一个中立的仿真平台上,将目前研究较多的几种典型分布式光路建路算法进行了综合分析和比较,通过仿真数据分析,包括业务阻塞率和光路建立时间,得出了各算法在不同网络环境下的优劣.并在此基础之上提出一种延迟化的分布式波长通道建路算法,并与已有算法进行对比以说明其优势,为根据具体网络状况选用最为合适的算法和策略提供了参考依据.
위해결파장로유WDM광망락중파장통도적분포식동태건립화탁제문제,이경유다개분포식파장통도건로산법피제출.단신제출적산법도시지근경전산법,여후향자원예류BRP화전향자원예류FRP등각자구유자신소불능극복적결함.본문재일개중립적방진평태상,장목전연구교다적궤충전형분포식광로건로산법진행료종합분석화비교,통과방진수거분석,포괄업무조새솔화광로건립시간,득출료각산법재불동망락배경하적우렬.병재차기출지상제출일충연지화적분포식파장통도건로산법,병여이유산법진행대비이설명기우세,위근거구체망락상황선용최위합괄적산법화책략제공료삼고의거.
Many distributed wavelength path management algorithms have been proposed for the dynamic lightpath setup and teardown in the wavelength routing WDM optical networks.However,the existing new algorithms are only compared with the classical ones,such as Backward Reservation Protocol or Forward Reservation Protocol,all have their own disadvantages.In this paper,these algorithms are compared by extensive simulations in an algorithms independent simulation platform.The most important metrics,i.e.blocking probability and lightpath setup time,are evaluated for each algorithm in a large range of traffic load.A holding based path establishing algorithm is proposed and compared with other schemes. As the results,the conclusions may provide references for the choosing of the most appropriate algorithm and strategy when the requirements of the network designing objectives are given.