scholarly journals Pulse Rate Control for Low Power and Low Data Rate Ultra Wideband Networks

10.5772/52497 ◽  
2013 ◽  
Author(s):  
Maria Dolores Perez Guirao
Keyword(s):  
Low Power ◽  
Pulse Rate ◽  
Rate Control ◽  
Data Rate ◽  
Ultra Wideband

Adaptive data rate control in low power wide area networks for long range IoT services

2017 ◽  
Vol 22 ◽  
pp. 171-178 ◽  
Author(s):  
Dae-Young Kim ◽  
Seokhoon Kim ◽  
Houcine Hassan ◽  
Jong Hyuk Park
Keyword(s):  
Low Power ◽  
Long Range ◽  
Rate Control ◽  
Data Rate ◽  
Wide Area ◽  
Wide Area Networks

CMOS LOW-POWER ANALOGUE BASEBAND CIRCUITS FOR A NON-COHERENT LOW DATA RATE IR-UWB RECEIVER

2011 ◽  
Vol 20 (01) ◽  
pp. 45-55 ◽  
Author(s):  
ZHIMING CHEN ◽  
YUANJIN ZHENG ◽  
XIAOJUN YUAN
Keyword(s):  
Low Power ◽  
Dynamic Range ◽  
Input Pulse ◽  
Cmos Technology ◽  
Input Power ◽  
Data Rate ◽  
Ultra Wideband ◽  
Received Signal Strength Indicator ◽  
Limiting Amplifier ◽  
Uwb Receiver

A low-power analogue baseband circuit for a low data-rate impulse radio ultra-wideband (IR-UWB) receiver is designed and implemented in a 0.18 μm CMOS technology, including a variable-gain amplifier (VGA), a received signal strength indicator (RSSI), and a limiting amplifier (LA). The VGA has gain range from -9 to 63 dB and bandwidth from 31 to 187 MHz. An input P1dB of -15.4 dBm is achieved at 0 dB gain. The RSSI has a dynamic range of approximately 70 dB. The RSSI linearity error is within ±1.2 dB for an input power from -77.5 dBm to -36.2 dBm. By adjusting the VGA gain and the LA threshold, the LA is able to detect an input pulse as low as 0.6 mV at a data rate of 15 mega-pulse per second (MP/s). The analogue baseband circuit draws current of 6.03 mA from a single voltage supply of 1.8 V. The test chip occupies an area of 970 μm × 750 μm, including two output buffers.

A Low-Power Low-Data Rate Impulse Radio Ultra-Wideband (IR-UWB) Transmitter

2017 ◽  
Vol 26 (03) ◽  
pp. 1740013 ◽  
Author(s):  
Ifana Mahbub ◽  
Samira Shamsir ◽  
Syed K. Islam
Keyword(s):  
Low Power ◽  
Biomedical Application ◽  
Short Pulse ◽  
Impulse Radio ◽  
Data Rate ◽  
Ultra Wideband ◽  
Modulation Scheme ◽  
Sleep Mode ◽  
Operating Voltage ◽  
5 Ghz

A low-power and low-data-rate (100 kbps) fully integrated CMOS impulse radio ultra-wideband (IR-UWB) transmitter for biomedical application is presented in this paper. The transmitter is designed using a standard 180-nm CMOS technology that operates at the 3.1-5 GHz frequency range with more than 500 MHz of channel bandwidth. Modulation scheme of this transmitter is based on on-off keying (OOK) in which a short pulse represents binary “1” and absence of a pulse represents binary “0” transmission. During the ‘off’ state (sleep mode) the transmitter consumes only 0.4 μW of power for an operating voltage of 1.8 V while during the impulse transmission state it consumes a power of 36.29 μW. A pulse duration of about 3.5 ns and a peak amplitude of the frequency spectrum of about -47.8 dBm/MHz are obtained in the simulation result which fully complies with Federal Communication Commission (FCC) regulation.

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