电子学报 ›› 2018, Vol. 46 ›› Issue (11): 2561-2570.DOI: 10.3969/j.issn.0372-2112.2018.11.001

• 学术论文 •    下一篇

WiNoC中EF-ACK容错无线接口设计

欧阳一鸣1, 钱昌1, 杜高明2, 黄正峰2, 李建华1, 梁华国2   

  1. 1. 合肥工业大学计算机与信息学院, 安徽合肥 230601;
    2. 合肥工业大学电子科学与应用物理学院, 安徽合肥 230601
  • 收稿日期:2017-12-03 修回日期:2018-06-25 出版日期:2018-11-25 发布日期:2018-11-25
  • 作者简介:欧阳一鸣 男,1963年生,教授,博士生导师,中国计算机学会高级会员,研究方向为片上网络(NoC)与片上系统(SoC),嵌入式系统的综合与测试,数字系统设计自动化.E-mail:oyymbox@163.com;钱昌 男,1994年生,硕士研究生,研究方向为片上系统及片上网络容错方法,无线片上网络.E-mail:qc-1994@qq.com
  • 基金资助:
    国家自然科学基金(No.61474036,No.61371025,No.61574052);国家自然科学基金青年科学基金(No.61402145)

Design of an EF-ACK Fault-Tolerate Wireless Interface in WiNoC

OUYANG Yi-ming1, QIAN Chang1, DU Gao-ming2, HUANG Zheng-feng2, LI Jian-hua1, LIANG Hua-guo2   

  1. 1. School of Computer and Information, Hefei University of Technology, Hefei, Anhui 230601, China;
    2. School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei, Anhui 230601, China
  • Received:2017-12-03 Revised:2018-06-25 Online:2018-11-25 Published:2018-11-25

摘要: 无线片上网络中的无线信道面临着严重的可靠性挑战,无线路由器的容错设计对整个片上网络的传输效率有着较大的影响.本文提出一种EF-ACK容错无线接口设计,将多条确认信息配置在一个数据包内,通过无线信道传递确认信息数据包;在无线接口处设立重传数据缓冲区,以更高效的方式确认数据以及控制错误数据包的重传;另外,提出了基于网络状态的编解码控制,在网络情况较差时用BCH编码的方式提高数据的鲁棒性.实验表明,本文方案使用了较小的额外面积和功耗开销,高效地完成了对于数据的无线确认反馈,且在错误率较高时,可以保证网络中较低的网络延迟和较高的饱和吞吐量,大大提高了网络的性能.

关键词: 无线片上网络, 容错, ACK确认, 无线信道, 无线接口

Abstract: The wireless channel in wireless network-on-chip faces serious reliability challenges.The fault-tolerant design of wireless routers has a great impact on the transmission efficiency of the entire network onchip.This paper presents a highly efficient acknowledgement feedback(EF-ACK) fault-tolerant wireless interface design.Several confirmation information is configured in a data packet,which can be transmitted over the wireless channel.Establish a retransmission data buffer at the wireless interface to validate the data in the most efficient manner and to control the retransmission of erroneous data packets.In addition,a network-state-based codec control is proposed,which improves the robustness of the data by means of BCH coding when the network conditions are poor.It can be concluded that the proposed scheme efficiently performs wireless acknowledgment feedback on data with only a small additional area and power consumption overhead and ensures a lower network latency and higher Saturated throughput in the network when the error rate is serious,greatly improving the performance of the network.

Key words: wireless network onchip, fault tolerant, ACK, wireless channel, wireless interface

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