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Effects of Non-matched Receiver Filters on π/4-DQPSK Bit Error Rate in Rayleigh Fading
Chun Sum NG Tjeng Thiang TJHUNG Fumiyuki ADACHI
Publication
IEICE TRANSACTIONS on Communications
Vol.E77-B
No.6
pp.800-807 Publication Date: 1994/06/25 Online ISSN:
DOI: Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Radio Communication Keyword: radio communication, cellular mobile radio, Rayleigh fading, bit error rate,
Full Text: PDF>>
Summary:
The effect of intersymbol interference resulting from non-matched receiver filtering on the bit error rate (BER) performance of π/4-DQPSK systems recently adopted in the North American and Japanese digital cellular standards, is analyzed in Rayleigh fading. With a Gaussian or a Butterworth (of order N, 2 N 10) receiver filter, the BER performance is found to degrade by only a small fraction of a decibel from the performance with ideally matched receiver filters. A 4th-order Butterworth receiver filter leads to BER curves which almost coincide with those of the ideally matched filtering condition.
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