基于自适应超时间隔调整的名字解析加速方法Name Resolution Acceleration Method Based on Adaptive Timeout Interval Adjustment
康立毅,陈晓
摘要(Abstract)：
基于名字解析的信息中心网络(ICN)在支持移动性时，由于终端移动后向名字解析系统注册其标识符和新地址的映射的时间不确定，网络设备需多次向名字解析系统发起解析查询，直到获取移动终端标识符对应的新地址，并将新地址作为目的地址进行数据传输。在网络设备多次向名字解析系统发起解析查询的过程中，需要设计一个合理的解析查询方法，以减少网络设备获取新地址的时延和移动终端的业务中断时延。本文提出一种基于自适应超时间隔调整的名字解析加速方法，该方法利用往返时延(RTT)的指数加权移动平均值自适应地调整超时间隔。实验结果表明，本文提出的方法和采用传输控制协议(TCP)中重传超时的估计方法(RFC6298)自适应地调整超时间隔的方法相比，新地址获取的平均时延减少了约12.48%;本文提出的方法与采用超时间隔为恒定值的方法相比，新地址获取的平均时延减少了约21.92%。
关键词(KeyWords)： 信息中心网络;移动性;解析查询;名字解析系统;自适应
基金项目(Foundation): 中国科学院青年创新促进会2020（编号：E029180101）
作者(Author): 康立毅,陈晓
DOI: 10.20064/j.cnki.2095-347X.2024.01.005
参考文献(References)：
- [1] Xylomenos G,Ververidis C,Siris V,et al.A Survey of Information-Centric Networking Research[J].Communications surveys & tutorials,2014,16(2):1024-1049.
- [2] Jiang X,Bi J,Nan G,et al.A Survey on Information-Centric Networking:Rationales,Designs and Debates[J].China Communications,2015,12(7):1-12.
- [3] Venkataramani A,Kurose J,Banerjee S,et al.Mobility First:A Mobility-Centric and Trustworthy Internet Architecture[J].ACM SIGCOMM Computer Communication Review,2014,44(3):74-80.
- [4] Dong L,Wang G.A Hybrid Approach for Name Resolution and Producer Selection in Information Centric Network[C]//Proceedings of the 2018 International Conference on Computing,Networking and Communications,Maui,HI,USA,2018:574-580.
- [5] Begen A C,Altunbasak Y.An Adaptive Media-Aware Retransmission Timeout Estimation Method for Low-Delay Packet Video[J].IEEE Transactions on Multimedia,2007,9(2):332-347.
- [6] Paxson V,Allman M,Chu J,et al.RFC 6298,Computing TCP’s Retransmission Timer[S].Internet Engineering Task Force,2011.
- [7] Ludwig R,Sklower K.The Eifel retransmission timer[J].ACM SIGCOMM Computer Communication Review,2000,30(3):17-27.
- [8] Li Q,Mills D L.Jitter-based delay-boundary prediction of wide-area networks[J].IEEE/ACM Transaction on Networking,2001,9(5):578-590.
- [9] Ma L,Arce G R,and Barner K E.TCP retransmission timeout algorithm using weighted medians[J].IEEE Signal Process Letters,2004,11(6):569-572.
- [10] 陈翔，刘卫东，任丰原.基于最小均方滤波的RTO预测算法[J].清华大学学报(自然科学版),2017,47(4):603-605.
- [11] Sinha R,Papadopoulos C.An adaptive multiple retransmission technique for continuous media streams[C]//Proceedings of ACM Network and Operating Systems Support for Digital Audio and Video,USA,2004:16-21.
- [12] Kesselman A,Mansour Y.Optimizing TCP retransmission timeout[C]//Proceedings of the 4th international conference on Networking,Montreal,Canada,2005:133-140.
- [13] Dong L,Zhao H,Chen Y,et al.Introduction on IMT-2020 5G Trials in China[J].IEEE Journal on Selected Areas in Communications,2017,35(8):1849-1866.