UWB无线传输安全可靠性保障技术  

UWB wireless transmission security and reliability assurance technology

作　　者：周柯成 陈皓 唐艺菁[1] ZHOU Kecheng;CHEN Hao;TANG Yijing(Xi'an Microelectronics Technology Institute,Xi'an 710054,China)

机构地区：[1]西安微电子技术研究所,陕西西安710054

出　　处：《微电子学与计算机》2024年第10期64-72,共9页Microelectronics & Computer

摘　　要：超宽频UWB(UltraWideBand)无线传输安全可靠性技术是UWB通信系统中的关键技术,本文在简要描述UWB通信系统设计的基础上,通过分析现有UWB通信协议机制在安全可靠性方面存在的不足,基于DW1000射频芯片信道采样电路支持,实现信道质量评估自适应机制、基于帧过滤的接入机制、基于ACK应答的重传机制的高可靠传输机制,提出基于轻量级AES-128动态加密算法,提升UWB传输的安全性和运算效率。在现实验条件下,实验结果与原方法相比,丢包数与误码数下降为0,对大小为10KB的明文加解密过程耗时平均减少13.5ms且能保证密文信息熵和原方法接近。因此,本文所提UWB安全可靠性保障技术相比较现有UWB无线通信机制在系统各项性能有明显提升。Ultra Wide Band(UWB)wireless transmission security and reliability technology is a critical component of UWB communication systems.In this paper,after briefly describing the design of UWB communication systems,we address the shortcomings in existing UWB communication protocol mechanisms regarding security and reliability.Leveraging the support of the DW1000 RF chip's channel sampling circuit,we establish an adaptive mechanism for channel quality assessment,an access mechanism based on frame filtering,and a high-reliability transmission mechanism based on ACK-based retransmission.Additionally,we propose a lightweight AES-128 dynamic encryption algorithm to enhance the security and computational efficiency of UWB transmission.Experimental results under laboratory conditions demonstrate a significant improvement compared to the original method,with zero packet loss and error codes.The average processing time for encrypting and decrypting plaintexts of 10 KB is reduced by 13.5 ms.Moreover,the ciphertext's information entropy is closely approximated to the original method.Consequently,the UWB security and reliability technology proposed in this paper exhibits substantial enhancements in various system performance aspects compared to existing UWB wireless communication mechanisms.

关 键 词：UWB无线通信技术 信道质量评估自适应机制 ACK自动应答机制 轻量级AES-128加密算法 

分 类 号：TN918.4[电子电信—通信与信息系统]