Real-Time Alamouti STBC Decoding on A Programmable Baseband Processor

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Hardware
Format: PDF
In this paper, the authors present a space-time block coding decoder for MIMO-OFDM enabled mobile terminals. The decoder is implemented using a programmable baseband processor aimed for Software-Defined Radio (SDR). The dynamic range supplied by the floating-point SIMD datapath allows special algorithms to significantly reduce the computational latency of decoding. The programmable solution not only supports different transmit/receive antenna configuration, but also allows hardware multiplexing to obtain silicon and power efficiency. Compared to several existing fixed-functional ASIC solutions in literature, the one proposed in this paper is by far the smallest, fastest and with more flexibility.
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