A low power demodulator LSIC for personal communications: High performance coherent detection demodulator

Y. Matsumoto, Shuji Kubota, S. Kato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a low power coherent π/4-shift QPSK demodulator LSIC for personal communication systems in Japan. The developed LSIC, implemented on a CMOS 0.8 μm standard cell with 2-V operation, achieves better frame error rate performance and lower power consumption than conventional demodulators. It uniquely employs (1) a reverse-modulation carrier recovery scheme with a -π/4 signal-phase rotator and a band-width-varied carrier filter, (2) a clock recovery scheme using initial clock phase estimation, (3) a fully digital orthogonal detection scheme suitable for low power consumption, and (4) a burst detection scheme using phase information in preamble. Performance evaluation confirms that the demodulator LSIC reduces the irreducible frame error rate by 40%, and achieves an Eb/No improvement of 3 dB at the frame error rate of 10% compared with differential detection under the Rayleigh fading channel common in personal communication.

Original languageEnglish
Title of host publicationWireless Networks - Catching the Mobile Future
Subtitle of host publication5th IEEE Intemational Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 1994 - Proceedings
EditorsJens C. Arnbak, Ramjee Prasad, Jos H. Weber
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages476-480
Number of pages5
ISBN (Electronic)9051991932
DOIs
Publication statusPublished - 1994 Jan 1
Externally publishedYes
Event5th IEEE Intemational Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 1994 - The Hague, Netherlands
Duration: 1994 Sep 181994 Sep 22

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2

Conference

Conference5th IEEE Intemational Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 1994
CountryNetherlands
CityThe Hague
Period94/9/1894/9/22

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Matsumoto, Y., Kubota, S., & Kato, S. (1994). A low power demodulator LSIC for personal communications: High performance coherent detection demodulator. In J. C. Arnbak, R. Prasad, & J. H. Weber (Eds.), Wireless Networks - Catching the Mobile Future: 5th IEEE Intemational Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 1994 - Proceedings (pp. 476-480). [529135] (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WNCMF.1994.529135