Acoustics, Speech, and Signal Processing, IEEE International Conference on (2001)
Salt Lake City, UT, USA
May 7, 2001 to May 11, 2001
M. Nafie , Texas Instrum. Inc., Dallas, TX, USA
Gaussian frequency shift keying modulation has been chosen as the modulation technique for the physical layer of Bluetooth. Bluetooth is a standard for low cost and low power wireless communications between various mobile devices. The optimal demodulation of a GFSK signal involves an extremely complex Viterbi decoder. Therefore designers have opted for the noncoherent detection of GFSK which uses a frequency discriminator, followed by symbol by symbol detection. We describe a decision feedback equalizer to be added after the discriminator. The DFE receiver gives gains in excess of 2 dB. We also describe how to increase the current data rate of a Bluetooth system by increasing the symbol rate and not the alphabet size.
M. Nafie, A. Gatherer and A. Dabak, "Decision feedback equalization for Bluetooth systems," 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings(ICASSP), Salt Lake City, UT, USA, 2001, pp. 909-912.