基于乱序反馈的差异化多路径并发传输模型数据分配算法  

Data Distribution Algorithm with Out-of-order Feedback for CMT over Diversity Network

作　　者：杜文峰[1] 吴真[1] 

机构地区：[1]深圳大学计算机与软件学院,深圳518060

出　　处：《计算机科学》2015年第3期60-64,共5页Computer Science

基　　金：国家自然科学基金项目(61003271);深圳市战略新兴产业发展专项资金项目(CXZZ20120820155332951)资助

摘　　要：多路径并发传输模型在差异化路径中会出现严重的数据包乱序现象,导致接收端缓冲区阻塞,极大地降低了偶联的整体传输性能。在分析影响路径传输性能因素的基础上,给出了差异化路径性能评估模型,并提出了一种基于乱序反馈的差异化路径并发传输数据分配算法。该算法以乱序反馈来动态调节路径的发送比例,减少了传输性能差的路径对整体吞吐量的影响。分析和实现结果表明,本算法的性能比默认的轮询数据分配算法更好。The performance of CMT degrades remarkably when a large quantity of out-of-order packets are blocked in the receive buffer due to the discrepancy of paths in terms of performance.Based on the analysis of different network configurations,aperformance evaluation model was proposed.Meanwhile,a data distribution algorithm was proposed to improve the performance of CMT over diversity paths.This algorithm dynamically adjusts the transmission ratio with the out of order feedback of receiver buffer and reduces the impact of path with bad performance.The result of analysis and simulation reveals that the performance of our scheme outperforms the original round-robin scheme.

关 键 词：多路径并发传输 差异化路径 数据分配 缓冲区反馈 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]