CFR and SNR Estimation Based on Complementary Golay Sequences for Single-Carrier Block Transmission in 60-GHz WPAN
The Single-Carrier Block Transmission (SCBT), a.k.a. Single-Carrier Frequency-Domain Equalization (SC-FDE), is being considered as an option technique for the Wireless Personal Area Network (WPAN) operating at 60-GHz. To combat the Inter-Symbol Interference (ISI) in Non-Line-Of-Sight (NLOS) environments, the Frequency-Domain Equalization (FDE) based on the Minimum Mean Square Error (MMSE) criterion is much more effective than the one based on the Zero Forcing (ZF) criterion. However, MMSE-FDE needs the estimation of both the Channel Frequency Response (CFR) and the Signal-to-Noise Ratio (SNR). In this work, the author estimated CFR and SNR based on the complementary Golay sequences whose sum auto-correlation has a unique peak and zero sidelobe. Through simulations, one proved that the proposed CFR and SNR estimation methods are very effective for SCBT system using MMSE-FDE.