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北京大学深圳研究生院 大数据技术研究院 深圳融合网络集成播控技术工程实验室,广东 深圳 518055
[ "朱兵(1990-),男,安徽庐江人,北京大学深圳研究生院博士生,主要研究方向为网络编码、分布式存储系统等。" ]
[ "李挥(1964-),男,广东潮州人,博士,北京大学深圳研究生院教授、博士生导师,主要研究方向为三网合一流媒体云计算网络视频关键技术、下一代网络体系结构、网络路由和宽带交换结构、网络编码理论及其应用、嵌入式系统开发。" ]
[ "陈俊(1990-),男,广东揭阳人,北京大学深圳研究生院硕士生,主要研究方向为分布式存储编码及实现。" ]
[ "侯韩旭(1987-),男,安徽砀山人,北京大学深圳研究生院博士生,主要研究方向为网络编码、分布式存储系统等。" ]
[ "周秦(1989-),男,河北邢台人,北京大学深圳研究生院硕士生,主要研究方向为分布式存储系统。" ]
网络出版日期:2015-02,
纸质出版日期:2015-02-25
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朱兵, 李挥, 陈俊, 等. 基于可分组设计的部分重复码研究[J]. 通信学报, 2015,36(2):98-105.
Bing ZHU, Hui LI, Jun CHEN, et al. Research on fractional repetition codes based on group divisible designs[J]. Journal on communications, 2015, 36(2): 98-105.
朱兵, 李挥, 陈俊, 等. 基于可分组设计的部分重复码研究[J]. 通信学报, 2015,36(2):98-105. DOI: 10.11959/j.issn.1000-436x.2015038.
Bing ZHU, Hui LI, Jun CHEN, et al. Research on fractional repetition codes based on group divisible designs[J]. Journal on communications, 2015, 36(2): 98-105. DOI: 10.11959/j.issn.1000-436x.2015038.
针对最小带宽再生情形下的有效修复问题,提出了一种新型部分重复(FR
fractional repetition)码设计。该设计由外部最大距离可分(MDS
maximum distance separable)码和内部重复码组成,称为 GDDBFR(group divisible design based FR)码,可以达到随机访问模式下的系统存储容量,并且能够在很大范围内选择构造参数。理论分析指出,尽管 GDDBFR 码采用基于表格的修复方式,但通常具有大量的节点修复选择方案。此外,实验结果表明,与传统的RS(Reed-Solomon)码和再生码相比,GDDBFR码可以显著地减少失效修复时间。
A novel design of FR (fractional repetition) codes was proposed which aims at providing efficient repair at the minimum bandwidth regenerating point.The design consisted of an outer MDS (maximum distance separable) code and an inner repetition code
called GDDBFR (group divisible design based FR) codes.The proposed codes can achieve the system storage capacity under the random access model and are available for a wide range of parameters.Despite of the table-based repair
theoretical analysis identifies that GDDBFR codes generally have large node repair alternatives.Furthermore
experimental results show that GDDBFR codes can significantly reduce the failure repair time when compared with legacy RS (Reed-Solomon) codes and regenerating codes in the domain.
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