Abstract
This paper is focusing on the performance of the proposed extended MIMO channel model based on 3D wave scattering with NLMS channel estimator using simulations, in the context of communication system with MIMO antenna operating in outdoor and indoor environments. Different training rates and different Doppler frequencies are used to track time-variations of the channel. The adaptive algorithm is namely Least Means Square (LMS) algorithm and normalized LMS (NLMS). The performance is evaluated in system BER, for different Doppler frequencies (correspond to different mobility speeds). Simulation results have demonstrated that time-domain adaptive channel estimation and tracking in MIMO OFDM systems based on the DD-NLMS is very effective in slowly to moderate time-varying fading channels. This paper provides analysis, evaluation and computer simulations in MATLAB.
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Acknowledgments
This work was supported in part by the Faculty of Electrical Engineering University Teknologi MARA, Shah Alam Selangor.
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Sarnin, S.S., Sulong, S.M. (2016). Performance of BER Channel Estimation and Tracking Based on DD-NLMS for Indoor and Outdoor Environment in MIMO OFDM. In: Sulaiman, H., Othman, M., Othman, M., Rahim, Y., Pee, N. (eds) Advanced Computer and Communication Engineering Technology. Lecture Notes in Electrical Engineering, vol 362. Springer, Cham. https://doi.org/10.1007/978-3-319-24584-3_28
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DOI: https://doi.org/10.1007/978-3-319-24584-3_28
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