Title :
Intermittent Operation Control Scheme for Reducing Power Consumption of UWB-IR Receiver
Author :
Terada, Takahide ; Fujiwara, Ryosuke ; Ono, Goichi ; Norimatsu, Takayasu ; Nakagawa, Tatsuo ; Miyazaki, Masayuki ; Suzuki, Kei ; Yano, Kazuo ; Maeki, Akira ; Ogata, Yuji ; Kobayashi, Shinsuke ; Koshizuka, Noboru ; Sakamura, Ken
Author_Institution :
Central Res. Lab., Hitachi, Ltd., Tokyo, Japan
Abstract :
A low power ultra-wideband impulse radio (UWB-IR) receiver was developed in 0.18-mum CMOS. All circuits of the receiver AFE operate intermittently with a sampling clock of an analog-digital converter (ADC). The sampling rate of the ADC is equal to the pulse repetition frequency of the received signals. Power consumption of the receiver AFE is reduced by 60% using a developed intermittent operation scheme without degrading of receiver sensitivity. As a result, the power consumption of the receiver AFE is 38 mW. The receiver has a data rate of 258 kb/s over a distance of 52 m and of 10.7 Mb/s over a distance of 14 m.
Keywords :
CMOS digital integrated circuits; analogue-digital conversion; radio receivers; ultra wideband communication; CMOS; UWB-IR receiver; analog-digital converter; bit rate 10.7 Mbit/s; bit rate 258 kbit/s; distance 14 m; distance 52 m; intermittent operation control scheme; power 38 mW; power consumption reduction; pulse repetition frequency; sampling clock; ultra-wideband impulse radio receiver; Bandwidth; Batteries; Energy consumption; Laboratories; Receivers; Sampling methods; Sensor systems; Ultra wideband technology; Wireless communication; Wireless sensor networks; Impulse radio; intermittent operation; low power; receiver; sensor network; ultra wideband;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2009.2027533
