【摘要】 快速可调谐光发射器是未来光分组传输网的关键器件,但其成本较高。为了降低节点成本,文章采用固定波长光发射器替代快速可调谐光发射器,并提出一种用于光分组传输城域网的信道配置方法,其核心是将各波分复用信道进一步细分,同时给每个节点配置两个固定波长的光发射器。数学分析及计算机仿真显示,该方法在请求等待时延、光信道的共享能力等方面,具有与配置快速可调谐光发射器相近的性能。更多还原

【Abstract】 The tunable transmitter is the key component in optical packet transferring network.In order to reduce the cost of nodes,the fixed transmitter is used,and a channel arrangement method for optical packet transferring metropolitan area network is proposed in this paper.The key points of this method are the division of data wavelength and the arrangement of two fixed wavelength optical transmitters in each node.The results of mathematics and simulation show that the queuing waiting delay and the optical channels sharing of this method are almost same with the case of tunable transmitter.更多还原