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Improvement of Fixed WiMAX OSTBC–OFDM Transceiver Based Wavelet Signals by Non-Linear Precoding Using SDR Platform

Author(s): Dr.Mohammed Aboud Kadhim | Dr.Hamood Shehab Hamid | Nooraldeen Raaoof Hadi

Journal: International Journal of Soft Computing & Engineering
ISSN 2231-2307

Volume: 3;
Issue: 5;
Start page: 143;
Date: 2013;
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Keywords: THP | WIMAX | SFF SDR | OFDM | RS | Coding | OSTBC | IDWT | DWT.

This paper inquire, a new Non-Linear precoding method to the acclimatization for the Worldwide Interoperability for fixed Microwave Access (WiMAX) baseband, in the physical layer performance of multi-antenna techniques, All cases are based on the IEEE 802.16d standard using orthogonal frequency division multiplexing (OFDM) based discrete wavelet transform (DWT) and 16-Quadrature amplitude modulation (QAM), ½ of coding rates and using SFF SDR development platform. The proposed Non-Linear Precoding Tomlinson-Harashima Precoding (THP) in WiMAX baseband consider a new way to further reduce the level of interference signals achieved much lower bit error rates and increase spectral efficiency. The proposed model was modeled-tested, and its performance was found to comply with International Telecommunications Union channel models (ITU) that have been elected for the wireless channel in the simulation process

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