摘要
无线路由器作为无线片上网络中无线通信的关键部件,若出现拥塞将会严重影响网络性能。基于此,提出一种协同拥塞控制的路由器(C^3WR)设计方案。该设计针对无线接口接收端缓冲区拥塞,首先通过无线输入端口与本地其他输入端口缓冲区级联的方式,为拥塞的数据提供多路径传输,其次提出WCC算法分流数据包缓解无线接收端拥塞。针对无线接口发送端缓冲区拥塞,采用动态路由策略,降低对拥塞无线路由器的流量注入率。实验结果表明,相较于对比对象,C^3WR路由器吞吐率最多增加33.80%,网络延时最多降低33.17%,面积功耗开销可接受。该方案以协同拥塞控制的方式均衡网络流量分布,保证了系统的性能又充分利用了可用资源。
As the key component of wireless communication on wireless network-on-chip(WiNoC),wireless router will seriously affect the network performance when congestion occurs.Thus,a high-performance wireless router design scheme deploying cooperative congestion control capacity(C^3WR)is proposed.To relieve buffer congestion happened at the receiving end of the wireless interface,a scheme that the wireless input port is connected to other local input buffer is designed to provide multipath transmission for the congested data.Then a WCC algorithm is proposed to mitigate wireless receiver congestion by shunting packets.For the buffer congestion in the sender side of the wireless interface,a dynamic routing policy is adopted to reduce the traffic injection rate of the congested wireless router.Experimental results show that compared with the comparison objects,the proposed scheme can improve the throughput by 33.80%and reduce the average latency by 33.17%at most,while the area overhead and power consumption are acceptable.This scheme balances the traffic distribution of the network with coordinated congestion control,it ensures the system performance while making full use of the available resources.
作者
欧阳一鸣
汝孟轩
李建华
梁华国
Ouyang Yiming;Ru Mengxuan;Li Jianhua;Liang Huaguo(School of Computer and Information,Hefei University of Technology,Hefei 230009,China;School of Electronic Science and Applied Physics,Hefei University of Technology,Hefei 230009,China)
出处
《电子测量与仪器学报》
CSCD
北大核心
2019年第2期168-179,共12页
Journal of Electronic Measurement and Instrumentation
基金
国家自然科学基金(61474036
61574052
61674048
61874157)
国家自然科学基金青年科学基金(61402145)
安徽省自然科学基金(1508085MF117)资助项目
关键词
无线片上网络
无线路由器
无线接口
拥塞控制
wireless network-on-chip
wireless router
wireless interface
cooperative congestion control
