摘要
自动重传请求(ARQ)协议是网络端_端传输中必不可少的一个环节。基于ARQ协议的在无反馈错误环境下的传输性能分析已得到广泛的研究。论文给出了一种在具有无线不可靠信道条件下根据传输性能要求自适应回传应答确认算法,有效地避免了不必要的重传,从而在一定条件下节省了宝贵的无线资源。模型分析及仿真结果表明:在一定的传输信道条件下使用自适应的MR_ARQ协议可有效地提高传输效率。
In this paper,a throughput model based on adaptive MR_ARQ protocol under the unreliable feedback trans-mission is analyzed.This algorithm provides an adaptive mechanism through which an ACK packet is transmitted to the sender under the condition of an error packet occur at the receiver side.The comparison of simulation between the con-stant-step algorithm and the adaptive-step algorithm shows that under the transmitting environment with small error rate the adaptive algorithm can effectively reduce the times of ACK protocol.
出处
《计算机工程与应用》
CSCD
北大核心
2003年第26期179-181,214,共4页
Computer Engineering and Applications
关键词
ARQ
自适应
吞吐量
协议
MR_ARQ,adaptive,throughput ,protocol
