QR-RLS Based Adaptive Channel TEQ for OFDM Wireless LAN

In this paper, QR-RLS based TEQ adapting is proposed. For QR decomposition two methods, Gram Schmidt orthogonalization process and Givens rotation are used and compared in terms of computational complexity. The performance of the proposed method is then compared with conventional LMS and standard RLS based FIR filter for TEQ with respect to computational complexity and BER. The simulation results show that proposed this method gives better results as compared to the aforementioned methods.