基于WiMAX标准的MIMO信号检测及其FPGA实现

MIMO Signal Detection Algorithm based on WiMAX Protocol and its Implementation on FPGA

基于WiMAX协议,针对多输入多输出系统空时编码的信号快速检测问题,分析并改进了固定球形解码算法,而后研究了算法细节对应的数字逻辑运算。最后,给出了算法实现的硬件原理图,并在现场可编程门阵列平台上实现了算法的逻辑,与理论值比对验证了算法的正确性,对标准的实现起到了参考指导作用。

For fast signal detection of space time coding （STC） in multiple input multiple output （MIMO） system based on WiMAX protocol, the fixed-complexity sphere decoder （FSD） algorithm is analyzed and improved. Then the digital logic operation corresponded to the algorithm details is studied. The hardware schematic of algorithm implementation is given, and the algorithm logic is realized on the platform of field-programmable gate arrays （FPGA）. Finally, the measured value is compared with the theoretical value, which verifies the correctness of the algorithm. The proposed algorithm will play as a reference guide in the implementation of standards.