一个应用于短波通信的差错控制协议—动态滑动窗口协议

1.引言在短波信道上通信,人们普遍采用的差错控制协议为自动回询纠错(Automatic Repeat reQuest)协议,简称ARQ协议。ARQ是通过应答和超时实现的一类协议。传统的ARQ分为停等协议和滑动窗口协议两种。在具体应用时,人们通常根据两种协议的链路利用率、所需的缓冲区资源和通信方式(半双工还是双工)来决定选择何种协议。停等协议中发送方发送一个数据帧以后停下来,等应答帧到来后,发下一数据帧,否则重发该数据帧。滑动窗口协议

Dynamic Sliding Window Protocol for Short-Wave Communication

Dynamic sliding window is a novel ARQ protocol for half-duplex short-wave channel. This algorithm extracts the virtue of Stop-and-Wait and Sliding Window protocols, uses acknowledgements and timeouts to implement reliability, and changes sliding window size according to channel quality. The paper puts forward the idea and the model of this protocol. The paper also analyzes the performance of this protocol, compared to the case using Wait-and-Stop protocol.