A 65nm 63.3µW 15Mbps Transceiver with SwitchedCapacitor Adiabatic Signaling and Combinatorial-PulsePosition Modulation for Body-Worn Video-Sensing AR Nodes

📋 论文概要

本文针对虚拟现实应用中可穿戴设备间高速低功耗数据传输的需求，提出了一种采用开关电容绝热信令和组合脉冲位置调制的收发器。该收发器在65nm工艺下实现了63.3µW功耗和15Mbps数据速率，解决了现有WiFi和蓝牙功耗过高或带宽不足的问题。

💡 主要创新点

• 提出开关电容绝热信令技术，通过电容充放电能量回收大幅降低通信能耗。
• 采用组合脉冲位置调制（Combinatorial-Pulse Position Modulation），在超低功耗下实现15Mbps的数据速率。
• 设计了63.3µW的超低功耗收发器架构，满足可穿戴设备长时间工作的需求。

🏷 关键词

📄 原文摘要

virtual reality (VR) demands 1) high speed (>10Mbps) data transfer among wearable devices around the human body with 2) low transceiver (TRX) power consumption for longer lifetime, especially as communication energy/b is often orders of magnitude higher than computation energy/switching. While WiFi can transmit compressed video (HD 30fps, compressed @6-12Mbps), it consumes 50-to-400mW power. Bluetooth, on the other hand, is not designed for video transfer. New mm-Wave links can support the required bandwidth but do not support ultra-low-power (<1mW). In recent years, Human-Body Communication (HBC) [1-6] has emerged as a promising low-power alternative to traditional wireless communication. However, previous implementations of HBC transmitters (Tx) suffer from a large plate-to-plate capacitance (CP, between signal

👥 作者与机构

Baibhab Chatterjee, Arunashish Datta, Mayukh Nath, Gaurav Kumar K,

Nirmoy Modak, Shreyas Sen Purdue University, West Lafayette, IN Recent advances in audio-visual augmented reality (AR) and