Optimized Differential GFSK Demodulator

Author

Yu, Bo ; Yang, Liuqing ; Chong, Chia-Chin

Author_Institution

Dept. of Electr. & Comput. Eng., Colorado State Univ., Fort Collins, CO, USA

Volume

59

Issue

6

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1497

Lastpage

1501

Abstract

Gaussian frequency shift keying (GFSK) is a promising digital modulation scheme. The design of simple and high-performance receivers for GFSK systems is a challenging task. In this letter, we develop an optimized differential GFSK demodulator and investigate the phase wrapping issue in its implementation. Simulation results show bit-error-rate (BER) performance improvement in comparison with conventional differential demodulators in both AWGN and flat fading channels. We also compare our proposed demodulator with other existing alternatives in terms of BER performance.

Keywords

AWGN channels; error statistics; fading channels; frequency shift keying; AWGN channels; Gaussian frequency shift keying; bit-error-rate performance; digital modulation scheme; flat fading channels; high-performance receivers; optimized differential GFSK demodulator; phase wrapping; Bit error rate; Bluetooth; Demodulation; Phase noise; Receivers; Signal to noise ratio; Gaussian frequency shift keying (GFSK); differential demodulation; phase wrapping;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2011.041111.100010A

Filename

5753991