BER performance of CC-OFDM system with NNLMS equalization technique

This work investigates a technique of high data transmission rate over wireless communication system. Now a day´s higher bandwidth demand has been increased and with the minimum tolerance of error. To enhance available bandwidth and improve the quality of transmission convolution codes are used on the OFDM (Orthogonal frequency division multiplexing) wireless communication system over AWGN channel. The main objective is to transmit the data with low bit error rate in the noisy environment. Convolution coding based OFDM systems with channel equalization (CC-OFDM-CE) is used to reduce bit error rate & to overcome the distortions caused by phenomena like fading, delay spread and multipath effect. This work investigated the OFDM system performance for uncoded channel equalization using quadrature amplitude modulation (QAM) and BPSK. To further enhance the system, convolutional coding employed to OFDM system with channel equalization.