A Quadrature Uncertain-IF IR-UWB Transceiver with Twin-OOK Modulation

📋 论文概要

该论文提出了一种采用Twin-OOK调制的正交不确定中频IR-UWB收发机，旨在解决短脉冲无线通信中的同步困难和能效问题。通过创新的调制和架构设计，改善了链路余量并提升了能效。

💡 主要创新点

• 提出Twin-OOK调制方式，在不降低能效的前提下改善基带同步性能。
• 采用正交不确定中频架构，降低接收机设计复杂性并提高链路余量。

🏷 关键词

📄 原文摘要

Benefiting from good energy efficiency and fine ranging accuracy, impulse-radio ultrawideband (IR-UWB) has been revived recently for short-distance communications. The IR-UWB transceiver, however, faces two major issues because of using short-duration pulses. Firstly, the short-duration pulse brings synchronization difficulty to the baseband. Even though the standard-compliant preamble [1] or the synchronized-OOK (S-OOK) modulation [2] provides a way for the baseband synchronization, they suffer from degraded energy efficiency or reduced link margin. Secondly, the IR-UWB receiver has a design trade-off between power consumption and demodulation performance. Having a simple architecture and intermittent operation, the noncoherent UWB receiver consumes less power than the coherent UWB receiver, but the demodulation performance is vulnerable to noise and interference. Recently, an uncertain-IF UWB

👥 作者与机构

Bowen Wang, Woogeun Rhee, Zhihua Wang

Tsinghua University, Beijing, China