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High bit rate π/4-QPSK modem with a new equalizer based on sequence estimation for mobile communications

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5 Author(s)
Kamio, Y. ; Commun. Res. Lab., Minist. of Posts & Telecommun., Tokyo, Japan ; Moriyama, E. ; Sasaoka, H. ; Hamaguchi, K.
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This paper proposes a new type of greatly reduced-complexity sequence estimation in which stronger power delay waves are selected and combined. The proposed method has a similar BER performance and a greatly reduced complexity than MLSE. A high-bit-rate transmission system with a rate of 10 Mbit/s, π/4-QPSK/TDM for multimedia data transmission in land mobile communications is implemented. In adopting a 4-channel TDM, a user bit rate of 2 Mbit/s can be achieved. The system can compensate for delayed waves of up to 1.8 μsec and sustains a maximum Doppler frequency (fd) of 240 Hz

Published in:
Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on  (Volume:2 )

Date of Conference: 1-4 Sep 1997

Page(s):
312 - 316 vol.2
Meeting Date :
01 Sep 1997-04 Sep 1997
Print ISBN:
0-7803-3871-5
INSPEC Accession Number:
5855466
Conference Location :
Helsinki
Digital Object Identifier :
10.1109/PIMRC.1997.630915
Product Type:
Conference Publications

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