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A 6.5-8.1-GHz Communication/Ranging VWB Transceiver for Secure Wireless Connectivity With Enhanced Bandwidth Efficiency and ΔΣ Energy Detection
IEEE Journal of Solid-State Circuits ( IF 5.4 ) Pub Date : 2020-02-01 , DOI: 10.1109/jssc.2019.2953828 Haixin Song , Dang Liu , Yining Zhang , Woogeun Rhee , Zhihua Wang
IEEE Journal of Solid-State Circuits ( IF 5.4 ) Pub Date : 2020-02-01 , DOI: 10.1109/jssc.2019.2953828 Haixin Song , Dang Liu , Yining Zhang , Woogeun Rhee , Zhihua Wang
This article describes a pulse-based transceiver architecture for mobile authentication with location verification. A time-of-flight (TOF) measurement method is employed as a physical layer countermeasure against relay attack. For bandwidth-efficient pulse transmission with enhanced link margin, frequency-hopping very-wideband (VWB) pulse generation is used. A noncoherent energy detection receiver is designed for TOF-based ranging to have demodulation with low power and low latency. The position of an energy integration window is automatically tracked for both pulse-position modulation (PPM) synchronization and coarse ranging. A $\Delta \Sigma $ energy detection method is proposed to convert ranging information to a 1-bit digital output without requiring asynchronous edge detection (ED). A prototype 6.5–8. 1-GHz VWB transceiver is implemented in 65-nm CMOS. Three channels are realized by having a channel bandwidth of about 400 MHz with a tunable guard band between two adjacent channels. The transceiver achieves the ranging accuracy of 2.0 cm and the demodulation latency of 20 ns, consuming 6.0 mW with a sensitivity of −69 dBm at 5 Mb/s.
中文翻译:
6.5-8.1-GHz 通信/测距 VWB 收发器,用于安全无线连接,具有增强的带宽效率和 ΔΣ 能量检测
本文介绍了一种基于脉冲的收发器架构,用于具有位置验证的移动身份验证。飞行时间(TOF)测量方法被用作物理层对抗中继攻击的对策。对于具有增强链路余量的带宽高效脉冲传输,使用跳频超宽带 (VWB) 脉冲生成。非相干能量检测接收器专为基于 TOF 的测距而设计,具有低功耗和低延迟的解调功能。脉冲位置调制 (PPM) 同步和粗测距都会自动跟踪能量积分窗口的位置。提出了一种$\Delta\Sigma $能量检测方法,无需异步边缘检测(ED)即可将测距信息转换为1位数字输出。原型 6.5-8。1-GHz VWB 收发器在 65-nm CMOS 中实现。通过具有大约 400 MHz 的信道带宽以及两个相邻信道之间的可调保护频带来实现三个信道。该收发器实现了 2.0 cm 的测距精度和 20 ns 的解调延迟,功耗为 6.0 mW,5 Mb/s 时的灵敏度为 −69 dBm。
更新日期:2020-02-01
中文翻译:
6.5-8.1-GHz 通信/测距 VWB 收发器,用于安全无线连接,具有增强的带宽效率和 ΔΣ 能量检测
本文介绍了一种基于脉冲的收发器架构,用于具有位置验证的移动身份验证。飞行时间(TOF)测量方法被用作物理层对抗中继攻击的对策。对于具有增强链路余量的带宽高效脉冲传输,使用跳频超宽带 (VWB) 脉冲生成。非相干能量检测接收器专为基于 TOF 的测距而设计,具有低功耗和低延迟的解调功能。脉冲位置调制 (PPM) 同步和粗测距都会自动跟踪能量积分窗口的位置。提出了一种$\Delta\Sigma $能量检测方法,无需异步边缘检测(ED)即可将测距信息转换为1位数字输出。原型 6.5-8。1-GHz VWB 收发器在 65-nm CMOS 中实现。通过具有大约 400 MHz 的信道带宽以及两个相邻信道之间的可调保护频带来实现三个信道。该收发器实现了 2.0 cm 的测距精度和 20 ns 的解调延迟,功耗为 6.0 mW,5 Mb/s 时的灵敏度为 −69 dBm。