| 光突发交换网络中面向低时延高可靠业务的突发编码机制 |
| |
| 引用本文： | 黄胜,李佳良,李根,李玲霞,刘焕淋. 光突发交换网络中面向低时延高可靠业务的突发编码机制[J]. 北京邮电大学学报, 2014, 37(5): 26-30. DOI: 10.13190/j.jbupt.2014.05.006 |
| |
| 作者姓名： | 黄胜 李佳良 李根 李玲霞 刘焕淋 |
| |
| 作者单位： | 重庆邮电大学 光纤通信重点实验室, 重庆 400065 |
| |
| 基金项目： | 国家自然科学基金项目(61071117,61171158,61275077);重庆市自然科学基金项目(cstc2013jcyjA40052,cstc2012jjA40060);重庆市教委项目(KJ130515) |
| |
| 摘 要： | 为了保证光突发交换(OBS)网络中业务高可靠性的同时,降低突发的端到端的时延,提出了一种基于不规则重复积累(IRA)码的突发编码机制. 对IRA码校验矩阵结构进行了一定的调整,得到一种能对突发进行在线编解码的在线不规则重复累积(OL-IRA)码. 利用OL-IRA码对信息突发进行编码,以便用产生的冗余突发来恢复丢失的信息突发. 仿真结果表明,OL-IRA码在保证恢复丢包能力的同时,也能明显缩短丢包恢复的时延.
|
| 关 键 词： | 光突发交换 OL-IRA码 在线 丢包恢复 |
| 收稿时间： | 2013-11-24 |
Burst Encoding Mechanism for Low Delay and High Reliable Service in Optical Burst Switching Networks |
| |
| HUANG Sheng,LI Jia-liang,LI Gen,LI Ling-xia,LIU Huan-lin. Burst Encoding Mechanism for Low Delay and High Reliable Service in Optical Burst Switching Networks[J]. Journal of Beijing University of Posts and Telecommunications, 2014, 37(5): 26-30. DOI: 10.13190/j.jbupt.2014.05.006 |
| |
| Authors: | HUANG Sheng LI Jia-liang LI Gen LI Ling-xia LIU Huan-lin |
| |
| Affiliation: | The Key Laboratory of Optical Fiber Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China |
| |
| Abstract: | In order to guarantee high reliable service in optical burst switching(OBS)networks and reduce the end-to-end delay of bursts, an online burst encoding mechanism based on irregular repeat accumulate(IRA) codes was proposed. The parity-check matrix of IRA codes was adjusted into a special structure, and then an on line IRA (OL-IRA) code which can encode and decode burst online was constructed. Information data bursts are encoded by OL-IRA codes to recover lost bursts with redundant bursts. Simulations show that OL-IRA codes will guarantee the performance of burst loss recovery, and can also shorten the delay of burst loss recovery. |
| |
| Keywords: | optical burst switching on line-irregular repeat accumulate codes online burst loss recovery |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《北京邮电大学学报》浏览原始摘要信息 |
|
点击此处可从《北京邮电大学学报》下载全文 |
|
