Algorithm for SNR Estimation In Rician Fading Channels

Orthogonal frequency division multiplexing provides strong robustness against inter carrier interference and also it provides good performance in frequency selective channels by adaptation techniques to estimate channel quality. An important parameter for calculating the channel performance is by signal to noise ratio (SNR) .I n this paper, we propose a novel for SNR estimation using synchronization preambles for rician fading channels. The preambles of periodic structure are used for efficient calculation for SNR estimation. The proposed estimator performance is compared with previous estimators and the proposed estimator is robust against frequency selectivity in the channel.