摘要
根据光突发交换(OpticalBurstSwitch-ing——OBS)网络的结构和特点,分析了其核心节点在数据信道调度发生拥塞时拥塞控制策略的缺陷,提出了OBS网络中一种主动拥塞控制策略(ACC),详细讨论了该策略的具体实现过程。通过仿真验证,在OBS网络中采用该算法能减少突发数据包的丢包率,从而达到改善整个OBS网络性能的目的。
In OBS networks, the control packet first traverses the core nodes and reserves suitable wavelength on the links for the corresponding data burst by using a scheduling algorithm. This paper proposes an active congestion control mechanism in OBS networks, and expounds the realization process in details. Through the simulation result and performance analysis, the mechanism can reduce the burst loss probability and enhance channel utilization, also it can realize differentiated service, so it enhances the performance of OBS networks.
出处
《光通信技术》
CSCD
北大核心
2006年第3期20-23,共4页
Optical Communication Technology
关键词
波分复用
光突发交换
竞争解析
主动拥塞控制
wavelength division multiplexing
optical burst switching
contention resolution
active congestion control
