An impulse radio ultra-wideband (IR-UWB) transceiver with digitalized multipulse position modulation (D-MPPM) is proposed for high-data-rate, low-power, and short-range communication. The D-MPPM overcomes the data-rate dependence on the system clock frequency by modulating data with the time difference between the two pulses and also allows fully digital circuit-based modulation and demodulation. With this technique, the data rate is improved by a factor of 5 compared to conventional IR-UWB modulation schemes at the same clock frequency, which results in 4.28-dB link margin enhancement compared to bi-pulse position modulation (BPPM). Also, the technique makes it possible to design a clockless receiver, which allows more compact and power efficient design. Thus, it can achieve 500 Mb/s with 27.7-mW power consumption for Rx and 7 mW for Tx and the radio range of 1-5 m.
Bibliographical noteFunding Information:
The authors would like to thank the Rohde & Schwarz for the support of test instruments. The CAD tool was supported by IDEC.
Manuscript received December 9, 2018; revised March 14, 2019; accepted April 21, 2019. Date of publication May 24, 2019; date of current version July 23, 2019. This paper was approved by Associate Editor Waleed Khalil. This work was supported by the Korea Government (MSIT) through the Institute of Information and Communications Technology Planning and Evaluation (IITP) under Grant 2017-0-00418. (Corresponding author: Tae Wook Kim.) G. Lee, J. Park, J. Jang, and T. W. Kim are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, South Korea (e-mail: taewook.kim @yonsei.ac.kr).
© 2019 IEEE.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering