Wireless wakeup receiver for logarithmic power detector architecture based on bit sampling

Abstract

The invention discloses a wireless wakeup receiver for logarithmic power detector architecture based on bit sampling. The wireless wakeup receiver comprises a wakeup wireless receiver with ultra-low power consumption and a master wireless receiver for receiving data. In a general state, the master wireless receiver of a receiving node is in a switch-off state and the wakeup wireless receiver is in a switch-on state; when a sending node sends data, a request packet is sent to the wakeup receiver; the wakeup receiver receives the request packet and wakes up a microprocessor of the node; and the microprocessor starts a master wireless transceiver to communicate with the sending node. The architecture of the receiver is the power detector architecture. Compared with tunable radio frequency receiver architecture, the wireless wakeup receiver has the advantages that the lower receiving sensitivity is achieved under the same power consumption, so the communication distance is longer. Compared with the receiver with superheterodyne architecture, the wireless wakeup receiver has the advantages that the electrification response speed is faster due to the fact that no high frequency oscillator is employed, so the wireless wakeup receiver is more adaptive to the application of the bit sampling technology.

Description

technical field [0001] The invention relates to the field of the Internet of Things, in particular to a wireless wake-up receiver based on a logarithmic power detector architecture of bit sampling. Background technique [0002] Because the wireless wake-up receiver can provide ultra-low power consumption and fast communication function at the same time, it has attracted extensive attention from academia and industry, and many schemes of wireless wake-up receiver have been proposed. According to the idea of ​​reducing the power consumption of wireless receivers, the existing wireless wake-up receivers can be divided into two categories: 1) wake-up receivers that reduce power consumption at the expense of increasing receiving sensitivity, 2) reduce the transmission rate for Wake-up receiver with reduced power consumption [0003] 1) A wake-up receiver that reduces power consumption at the expense of increased receiver sensitivity [0004] In order to reduce the power consump...

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Problems solved by technology

However, the dynamic range of the receiver is not high, and it is susceptible to slow fading interference

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