@article{MAKHILLAJIT20161566080,
    title = {Modified Max-Log-MAP Turbo Decoding Algorithm for MIMO-OFDM System},
    journal = {Asian Journal of Information Technology},
    volume = {15},
    number = {6},
    pages = {1005-1014},
    year = {2016},
    issn = {1682-3915},
    doi = {ajit.2016.1005.1014},
    url = {https://makhillpublications.co/view-article.php?issn=1682-3915&doi=ajit.2016.1005.1014},
    author = {N.S. and},
    keywords = {Log-MAP,Max-Log-MAP,scaling factor,turbo codes,OFDM},
    abstract = {This study proposes a new Scaling Factor (SF) approach for reducing the over estimation of reliability values for Max-Log-MAP (MLMAP) turbo decoding algorithm. Modified Max-Log-MAP (M-MLMAP) algorithm is smeared by fixing an indiscriminate SF for inner decoder S<SUB>1</SUB> and an optimized, adaptive SF for the outer decoder S<SUB>2</SUB>. The performance of various scaling factors is compared and optimized scaling factor is obtained which is influenced by E<SUB>b</SUB>/N<SUB>0</SUB> with least Bit Error Rate (BER). Suitable mathematical relationship between scaling factor and E<SUB>b</SUB>/N<SUB>0</SUB> is also given. The effect of the suggested algorithm for a range of system parameters is considered in a systematic fashion, in order to gauge their performance implications. The numerical results show that the proposed M-MLMAP algorithm improves the performance of turbo decoding over Additive White Gaussian Noise (AWGN) and rayleigh fading channels. The proposed M-MLMAP is superior to MLMAP algorithm in both performance and complexity. The performance of the proposed algorithm is also analysed in Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system for suitable applications in WIMAX and LTE.}
    }