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Implementation of LTE spatial multiplexing based on FPGA
DU Fang YUAN Ling LIU Li-cheng
Journal of Computer Applications
2012, 32 (06):
1503-1505.
DOI: 10.3724/SP.J.1087.2012.01503
Through the analysis of the LTE system in FPGA-based spatial multiplexing coding problem, and propose a implementation of a codebook-based precoding. According to the parameters of the upper informed carries on the table look-up in the mathematical table and the addition and subtraction relations table, the data of layer mapping first carries on coefficient multiplication, then add and subtract, thus this has replaced the complex matrix multiplication operation. Therefore this method can greatly reduce the complex matrix multiplication operation in the precoding procedure, and reduce the complexity of encoding process, improve the speed of the encoding operation. The experimental results indicate that the proposed algorithm can achieve a good system function.
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