Data delivery delay and cross-layer packet size analysis for reliable transmission of Licklider transmission protocol in space networks  

作　　者：Guannan YANG Ruhai WANG Kanglian ZHAO Wenfeng LI Dong YAN 

机构地区：[1]School of Information Engineering,Nanjing University of Finance and Economics,Nanjing 210023,China [2]Drayer Department of Electrical and Computer Engineering,Lamar University,Beaumont TX 77710,USA [3]School of Electronic Science and Engineering,Nanjing University,Nanjing 210093,China [4]Beijing Aircraft Overall Design Department,Beijing 100094,China

出　　处：《Science China(Information Sciences)》2024年第9期225-240,共16页中国科学（信息科学）（英文版）

基　　金：supported by Chongqing Key Laboratory of Mobile Communications Technology(Grant No.cqupt-mct-202203)。

摘　　要：Delay/disruption tolerant networking(DTN)is proposed as a networking architecture to overcome challenging space communication characteristics for reliable data transmission service in presence of long propagation delays and/or lengthy link disruptions.Bundle protocol(BP)and Licklider Transmission Protocol(LTP)are the main key technologies for DTN.LTP red transmission offers a reliable transmission mechanism for space networks.One of the key metrics used to measure the performance of LTP in space applications is the end-to-end data delivery delay,which is influenced by factors such as the quality of spatial channels and the size of cross-layer packets.In this paper,an end-to-end reliable data delivery delay model of LTP red transmission is proposed using a roulette wheel algorithm,and the roulette wheel algorithm is more in line with the typical random characteristics in space networks.The proposed models are validated through real data transmission experiments on a semi-physical testing platform.Furthermore,the impact of cross-layer packet size on the performance of LTP reliable transmission is analyzed,with a focus on bundle size,block size,and segment size.The analysis and study results presented in this paper offer valuable contributions towards enhancing the reliability of LTP transmission in space communication scenarios.

关 键 词：Licklider transmission protocol DTN bundle protocol cross-layer packets size space communication 

分 类 号：TN927.2[电子电信—通信与信息系统]