摘要
无连接可靠传输协议在数据链系统的建设中占有重要地位,其性能的优劣直接影响数据链的整体性能。针对数据链用户服务层报文可变的特点设计了分段重组协议,然后为保证无线接传输的可靠性设计了确认重传机制,并在此基础上引入了窗口机制以控制应用层报文流量,最后通过在OPNET中建立仿真模型以及干扰实验场景验证了所设计协议的有效性。实验结果表明协议在强干扰条件下基本能够保证数据的可靠传输。
Connectionless reliable transport protocol plays an important part in data-link systems,and its performance directly impacts the overall performance of data link systems.According to the variability of the message in the user service layer of data link,a segment and reconstruction mechanism was designed.A retransmission mechanism was proposed to ensure the reliability of wireless transmission.Then,a window mechanism was introduced to control the flow of application layer message based on the retransmission mechanism.Finally,the simulation model and experimental scene with interference node were built in the OPNET,aiming to verify the validity of protocol.The experimental results show that this protocol can reliably transmit data with strong interference.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2009年第S2期218-221,225,共5页
Journal of System Simulation
基金
VMF数据链协议分析
关键词
数据链
无线通信
可靠传输
仿真
data link
wireless communication
reliable transmission
simulation
