Fast synchronization algorithms for GMSK at low SNR in BAN

As Gaussian minimum shift keying (GMSK) modulation scheme is adopted for body area network (BAN) applications, fast and power efficient synchronization algorithms for GMSK are desired considering the limited resources in BAN. We propose new synchronization algorithms for GMSK with the constraints of low complexity and low signal-to-noise ratio. Our new feedforward timing and frequency recovery algorithms can provide much better performance than those with similar complexity in the literature. The overall bit error rate (BER) performance of the GMSK system is within 1 dB loss compared to that with perfect synchronization.