Title :
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
fDate :
6/1/2011 12:00:00 AM
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;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2011.041111.100010A
