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Ultra low power transceivers for wireless sensors and body area networks

Sjöland, Henrik LU ; Anderson, John B LU ; Bryant, Carl LU ; Chandra, Rohit LU ; Edfors, Ove LU ; Johansson, Anders J LU ; Seyed Mazloum, Nafiseh LU ; Meraji, Reza LU ; Nilsson, Peter LU and Radjen, Dejan LU , et al. (2014) 8th International Symposium on Medical Information and Communication Technology (ISMICT) In [Host publication title missing]
Abstract
A transceiver suitable for devices in wireless body area networks is presented. Stringent requirements are imposed by the high link loss between opposite sides of the body, about 85 dB in the 2.45 GHz ISM band. Despite this, minimum physical size and power consumption are required, and we target a transceiver with 1 mm2 chip area, 1 mW active power consumption, and data rate 250 kbit/s. The receiver is fully integrated., fabricated and measured in 65-nm CMOS, and size and power consumption are carefully considered at all levels of circuit and system design. The modulation is frequency shift keying, chosen because transmitters can be realized with high efficiency and low spurious emissions; a modulation index 2 creates a midchannel spectral... (More)
A transceiver suitable for devices in wireless body area networks is presented. Stringent requirements are imposed by the high link loss between opposite sides of the body, about 85 dB in the 2.45 GHz ISM band. Despite this, minimum physical size and power consumption are required, and we target a transceiver with 1 mm2 chip area, 1 mW active power consumption, and data rate 250 kbit/s. The receiver is fully integrated., fabricated and measured in 65-nm CMOS, and size and power consumption are carefully considered at all levels of circuit and system design. The modulation is frequency shift keying, chosen because transmitters can be realized with high efficiency and low spurious emissions; a modulation index 2 creates a midchannel spectral notch. A direct-conversion receiver achieves minimum power consumption. A tailored demodulation structure makes the digital baseband compact and low power. The channel decoder has been implemented in both analog and digital domains to find the most power efficient solution. Antenna design and wave propagation are studied via simulations with phantoms. The 2.45 GHz ISM band was chosen as a good compromise between antenna size and link loss. An ultra-low power medium access scheme based on a duty-cycled wake-up receiver is designed. (Less)
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type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
8th International Symposium on Medical Information and Communication Technology (ISMICT)
external identifiers
  • wos:000356042800046
  • scopus:84903281110
ISSN
2326-828X
project
EIT_UPD Wireless Communication for Ultra Portable Devices
language
English
LU publication?
yes
id
7f7f015d-7a65-4fef-8522-f0eda273f7d3 (old id 4462052)
alternative location
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6825247
date added to LUP
2014-06-10 15:34:53
date last changed
2017-08-27 04:53:45
@inproceedings{7f7f015d-7a65-4fef-8522-f0eda273f7d3,
  abstract     = {A transceiver suitable for devices in wireless body area networks is presented. Stringent requirements are imposed by the high link loss between opposite sides of the body, about 85 dB in the 2.45 GHz ISM band. Despite this, minimum physical size and power consumption are required, and we target a transceiver with 1 mm2 chip area, 1 mW active power consumption, and data rate 250 kbit/s. The receiver is fully integrated., fabricated and measured in 65-nm CMOS, and size and power consumption are carefully considered at all levels of circuit and system design. The modulation is frequency shift keying, chosen because transmitters can be realized with high efficiency and low spurious emissions; a modulation index 2 creates a midchannel spectral notch. A direct-conversion receiver achieves minimum power consumption. A tailored demodulation structure makes the digital baseband compact and low power. The channel decoder has been implemented in both analog and digital domains to find the most power efficient solution. Antenna design and wave propagation are studied via simulations with phantoms. The 2.45 GHz ISM band was chosen as a good compromise between antenna size and link loss. An ultra-low power medium access scheme based on a duty-cycled wake-up receiver is designed.},
  author       = {Sjöland, Henrik and Anderson, John B and Bryant, Carl and Chandra, Rohit and Edfors, Ove and Johansson, Anders J and Seyed Mazloum, Nafiseh and Meraji, Reza and Nilsson, Peter and Radjen, Dejan and Rodrigues, Joachim and Sherazi, Syed Muhammad Yasser and Öwall, Viktor},
  booktitle    = {[Host publication title missing]},
  issn         = {2326-828X},
  language     = {eng},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {Ultra low power transceivers for wireless sensors and body area networks},
  year         = {2014},
}