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This paper presents the design, implementation and experimental validation of a real-time FPGA-based mobile WiMAX baseband transceiver. Three different antenna configuration schemes were implemented and tested, namely the Single Input Single Output (SISO), the Single Input Multiple Output (SIMO) and the Multiple Input Multiple Output (MIMO). A reproducible design methodology enabled the deployment of the 20 MHz bandwidth prototype. The paper also includes a functional description of the implemented baseband processing blocks for each antenna scheme. A real-time testbed has hosted the three baseband implementations. A dedicated data-capturing interface facilitated their performance comparison in respect to the equivalent Matlab models.
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