Performance Evaluation of WiMAX System OFDM Physical Layer for Flat - Fading and Multipath - Fading Channel Environments
نویسندگان
چکیده
This paper represents an end-to-end baseband model of the physical layer of a WiMAX network according to the IEEE® 802.16 standard. The model supports all mandatory and optional data rates 27 Mb/s. The model also illustrates adaptive modulation and coding over a flat-fading and dispersive multipath fading channel, whereby the simulation varies the data rate dynamically The channel estimation technique uses training sequence inserted at the beginning of each transmission. Theory and methods are presented in details. The system model is designed for WiMAX IEEE 802.16 transceiver in MATLAB Simulink and the performances are evaluated using software Matlab. Keywords-Adaptive modulation, Multipath Fading, Equalizer, OFDM, WiMAX.
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