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SISO and MIMO OFDM Physical Layer Algorithms on a Heterogeneous Multiprocessor Platform - Implementations and Mapping Exploration

Authors:: Ramakrishnan, V. , Ascheid, G. , Adrat, M. , Antweiler, M.
Book Title:: Software Defined Radio Technical Conference
Date:: 2011
Language:: English
Abstract:: This paper presents the physical layer implementation and mapping exploration of a single input single output (SISO) and multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) systems on a commercial heterogeneous multiprocessor hardware platform. The SFF SDR development platform [1] from Lyrtech is used as the hardware platform in this paper. It consists of a TMS320DM6446 system-on-chip with a ARM926 core and a TMS320C64x+ DSP core from Texas Instruments and Virtex-4 SX35 FPGA from Xilinx. In order to enhance both portability and efficiency, the waveform development process uses the Nucleus methodology [2]. This methodology is library based and adopts a model driven architecture (MDA) design process. The tradeoffs between portability and efficiency are analyzed by efficiently implementing the computation intensive components of the physical layer, e.g. by using hand optimized assembly code in case of DSP.
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