A novel digital FM receiver for mobile and personal communications

Author

Kwon, Hyuck M. ; Lee, Kwang Bok

Author_Institution

Dept. of Electr. Eng., Wichita State Univ., KS, USA

Volume

44

Issue

11

fYear

1996

fDate

11/1/1996 12:00:00 AM

Firstpage

1466

Lastpage

1476

Abstract

A digital baseband receiver called zero-intermediate frequency zero-crossing demodulator (ZIFZCD) was developed for digital FM signal detection. ZIFZCD is applicable to many worldwide mobile and personal communications systems. In addition, ZIFZCD offers lower power consumption and simpler implementation, compared to the conventional analog implementation [e.g., a limiter-discriminator integrator and dump (LDI)] and the conventional digital implementation [e.g., the cross-differentiate-multiply demodulator (CDM)]. This paper introduces the ZIFZCD and reports the bit-error rate (BER) of the ZIFZCD under both static and fading environments. The analyzed and simulated BER results show that the ZIFZCD is comparable to the conventional CDM for narrowband digital FM with a modulation index of 0.5, and the ZIFZCD is significantly better than the CDM for wideband digital FM with a modulation index larger than 1.5

Keywords

demodulation; demodulators; digital radio; error statistics; fading; frequency modulation; land mobile radio; personal communication networks; radio receivers; signal detection; ZIFZCD; bit error rate; cross-differentiate-multiply demodulator; digital FM receiver; digital FM signal detection; digital baseband receiver; fading environment; low power consumption; mobile communications; modulation index; narrowband digital FM; personal communications; static environment; wideband digital FM; zero-intermediate frequency zero-crossing demodulator; Analytical models; Baseband; Bit error rate; Demodulation; Energy consumption; Fading; Frequency modulation; Narrowband; Signal detection; Wideband;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.544463

Filename

544463