Journal of Xidian University

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Design of the low power wake-up receiver for internet of things communication

MENG Fanzhen1,2;LIU Hong1;WANG Mingliang1;LIN Shuiyang1;TIAN Tong1,2   

  1. (1. Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences, Shanghai 201801, China;
    2. School of Electronic, Electrical and Communication Engineering, Univ. of Chinese Academy of Sciences, Beijing 100049, China)
  • Received:2016-03-10 Online:2017-04-20 Published:2017-05-26

Abstract:

A wake-up receiver with high energy efficiency and low power consumption is proposed for solving the power consuming problems of wireless nodes communication in the Internet of Things. The proposed wake-up receiver based on the wake-up mechanism can effectively schedule the network nodes communication, and use the simple envelope detection structure to achieve frequency down-conversion, which can flexibly manage energy and reduce power consumption. Based on UMC 65nm CMOS process technology, the wake-up receiver is designed and simulated. The results show that it can achieve S11 of -21dBm and a sensitivity of -75dBm at a data rate of 1Mb/s, when operating at the central frequency of 780MHz and input signal adopting an on-off keying (OOK) modulation, and the power consumption is 82μW at 1.2V voltage supply.

Key words: low power, wake-up receiver, internet of things, envelope detector, wireless communication