摘要
构建得到可以实现链路状态自适应功能的FEC编码算法Adacode,实现链路吞吐率的上升。通过结合应用帧内与帧间编码两种方式,使丢包率显著减小,由此降低重传的次数。采用Adacode来完成物理层速率与预估编码率的相互结合,得到最大有效吞吐率的组合结果。对于单流MCS,数据传输的最大与最小有效吞吐率依次为63.81Mbps与47.05Mbps,以Adacode构建的MAC层通过连续发送与累积ACK的反馈模式,使信道利用率获得明显提升;对于双流MCS,测试得到最低丢包率等于8%,最高为32%。Adacode获得最小与最大编码率分别为0.793与0.832,可以实现所有损毁与出错数据包恢复。
FEC coding algorithm Adacode,which can realize link state adaptive function,is constructed to realize the increase of link throughput.Through the combination of in-frame and inter-frame coding,the packet loss rate is significantly reduced,thus reducing the number of retransmission.Adacode is used to combine the physical layer rate with the estimated encoding rate to obtain the combination result of the maximum effective throughput rate.For single-stream MCS,the maximum and minimum effective throughput rates of data transmission are respectively 63.81 Mbps and 47.05 Mbps.The MAC layer built with Adacode can significantly improve the channel utilization by continuously sending and accumulating ACK feedback mode.For dual-stream MCS,the test results showe that the lowest packet loss rate is equal to 8%and the highest is32%.The Adacode has minimum and maximum encoding rates of 0.793 and 0.832 respectively,which can recover all corrupted and error packets.
作者
娄一艇
戚浩金
叶明达
LOU Yi-ting;QI Hao-jin;YE Ming-da(State Grid Ningbo Electric Power Supply Company,Ningbo 315000 China)
出处
《自动化技术与应用》
2020年第5期80-83,95,共5页
Techniques of Automation and Applications
