Nyquist QPSK transmission using rational-function filter for mobile radio

Tadao Takami; Shigeki Saito; Shigeru Tomisato; Yasushi Yamao

Nyquist QPSK transmission using rational-function filter for mobile radio

Tadao Takami, Shigeki Saito, Shigeru Tomisato, Yasushi Yamao

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The design and implementation of a Nyquist QPSK (quadrature phase-shift keying) transmission scheme using a rational-function receiving filter are presented. The scheme is suitable for mobile radios which must be as small as possible and operate with limited power sources. A transitional Butterworth-Thomson (TBT) filter is examined as a rational-function filter, and a ceramic receiving filter is developed with optimum TBT characteristics. π/4-shifted QPSK transmission experiments using this filter are conducted. The experimental results show that the required input level and cochannel interference are superior by 1 dB to 0.9 dB, respectively, to those of the conventional transmission scheme. The maximum permissive delay spread in frequency-selective fading channels is improved by around 30%.

Original language	English
Title of host publication	41 IEEE Veh Technol Conf
Publisher	Publ by IEEE
Pages	663-668
Number of pages	6
ISBN (Print)	0879425822
Publication status	Published - May 1 1991
Externally published	Yes
Event	41st IEEE Vehicular Technology Conference - St. Louis, MO, USA Duration: May 19 1991 → May 22 1991

Publication series

Name	IEEE Vehicular Technology Conference
ISSN (Print)	0740-0551

Other

Other	41st IEEE Vehicular Technology Conference
City	St. Louis, MO, USA
Period	5/19/91 → 5/22/91

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Cite this

@inproceedings{017df1dacd094d9abea17ea380a91c64,

title = "Nyquist QPSK transmission using rational-function filter for mobile radio",

abstract = "The design and implementation of a Nyquist QPSK (quadrature phase-shift keying) transmission scheme using a rational-function receiving filter are presented. The scheme is suitable for mobile radios which must be as small as possible and operate with limited power sources. A transitional Butterworth-Thomson (TBT) filter is examined as a rational-function filter, and a ceramic receiving filter is developed with optimum TBT characteristics. π/4-shifted QPSK transmission experiments using this filter are conducted. The experimental results show that the required input level and cochannel interference are superior by 1 dB to 0.9 dB, respectively, to those of the conventional transmission scheme. The maximum permissive delay spread in frequency-selective fading channels is improved by around 30%.",

author = "Tadao Takami and Shigeki Saito and Shigeru Tomisato and Yasushi Yamao",

year = "1991",

month = may,

day = "1",

language = "English",

isbn = "0879425822",

series = "IEEE Vehicular Technology Conference",

publisher = "Publ by IEEE",

pages = "663--668",

booktitle = "41 IEEE Veh Technol Conf",

note = "41st IEEE Vehicular Technology Conference ; Conference date: 19-05-1991 Through 22-05-1991",

}

TY - GEN

T1 - Nyquist QPSK transmission using rational-function filter for mobile radio

AU - Takami, Tadao

AU - Saito, Shigeki

AU - Tomisato, Shigeru

AU - Yamao, Yasushi

PY - 1991/5/1

Y1 - 1991/5/1

N2 - The design and implementation of a Nyquist QPSK (quadrature phase-shift keying) transmission scheme using a rational-function receiving filter are presented. The scheme is suitable for mobile radios which must be as small as possible and operate with limited power sources. A transitional Butterworth-Thomson (TBT) filter is examined as a rational-function filter, and a ceramic receiving filter is developed with optimum TBT characteristics. π/4-shifted QPSK transmission experiments using this filter are conducted. The experimental results show that the required input level and cochannel interference are superior by 1 dB to 0.9 dB, respectively, to those of the conventional transmission scheme. The maximum permissive delay spread in frequency-selective fading channels is improved by around 30%.

AB - The design and implementation of a Nyquist QPSK (quadrature phase-shift keying) transmission scheme using a rational-function receiving filter are presented. The scheme is suitable for mobile radios which must be as small as possible and operate with limited power sources. A transitional Butterworth-Thomson (TBT) filter is examined as a rational-function filter, and a ceramic receiving filter is developed with optimum TBT characteristics. π/4-shifted QPSK transmission experiments using this filter are conducted. The experimental results show that the required input level and cochannel interference are superior by 1 dB to 0.9 dB, respectively, to those of the conventional transmission scheme. The maximum permissive delay spread in frequency-selective fading channels is improved by around 30%.

UR - http://www.scopus.com/inward/record.url?scp=0026158709&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026158709&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0026158709

SN - 0879425822

T3 - IEEE Vehicular Technology Conference

SP - 663

EP - 668

BT - 41 IEEE Veh Technol Conf

PB - Publ by IEEE

T2 - 41st IEEE Vehicular Technology Conference

Y2 - 19 May 1991 through 22 May 1991

ER -

Nyquist QPSK transmission using rational-function filter for mobile radio

Abstract

Publication series

Other

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this