Optimized differential Bluetooth demodulator

Authors:
Bo Yu;Liuqing Yang;Chia-Chin Chong
Affiliations:
Department of ECE, University of Florida, Gainesville, FL;Department of ECE, University of Florida, Gainesville, FL;DOCOMO USA Labs, Palo Alto, CA
Venue:
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Year:
2009

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Abstract

Bluetooth is a short-range communication standard which employs Gaussian frequency shift keying (GFSK). The design of low-complexity and high-performance receivers for Bluetooth systems is a challenging task. In this paper, 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. We also compare our proposed demodulator with other existing alternatives in terms of BER performance and complexity.