| 光网络中一种考虑信号损伤限制和服务质量区分的动态RWA算法 |
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| 引用本文： | 项鹏,王荣.光网络中一种考虑信号损伤限制和服务质量区分的动态RWA算法[J].量子电子学报,2007,24(6):736-742. |
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| 作者姓名： | 项鹏 王荣 |
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| 作者单位： | 解放军理工大学通信工程学院电信工程系,江苏,南京,210007 |
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| 摘 要： | 在光网络中,光信号沿着路由与波长分配(RWA)算法选定的光通路传输的过程中会受到各种信号损伤的影响而导致信号质量的不断下降,严重影响着业务的服务质量(QoS).而光网络中多样化的客户层业务往往有着不同的QoS的需求,因此有必要根据不同的业务QoS需求对光信号损伤的影响进行不同程度的控制.针对这一问题,提出了一种能同时考虑信号损伤限制和服务质量区分的动态RWA算法,并通过计算机仿真的方法对其性能进行了分析和验证.结果表明:该算法既能克服光网络中信号损伤的影响又能为不同级别的业务提供不同的QoS保证,更贴近实际需求.
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| 关 键 词： | 光通信 光网络 信号损伤 路由与波长分配算法 服务质量 |
| 文章编号： | 1007-5461（2007）06-0736-07 |
| 收稿时间： | 2007/1/15 |
| 修稿时间： | 2007-01-15 |
Transmission impairments-aware dynamic RWA algorithm in optical networks under differentiated QoS consideration |
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| XIANG Peng,WANG Rong.Transmission impairments-aware dynamic RWA algorithm in optical networks under differentiated QoS consideration[J].Chinese Journal of Quantum Electronics,2007,24(6):736-742. |
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| Authors: | XIANG Peng WANG Rong |
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| Affiliation: | Department of Telecommunication Engineering, PLA University of Science and Technology, Nanjing 210007, China |
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| Abstract: | In optical networks,the quality of service(QoS)is degraded by signal impairments incurred by non-ideal transmission.At the same time,different classes of service in the current optical network have different QoS requirement.So it is essential to develop intelligent routing and wavelength assignment(RWA)algorithms to combat the effects of impairments according to different QoS requirements.A new RWA algorithm is presented by combining the above two issues together.The simulation shows that the new algorithm can insure QoS of provisioned connections for clients with different QoS requirements. |
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| Keywords: | optical communication optical network transmission impairment routing and wavelength assignment quality of service |
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