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提出了正交频分多址(OFDMA)上行链路中基于信噪比最优顺序的快速串行干扰消除方法.该方法利用干扰矩阵的各列近似正交特性,按照它们的相关程度得到解调后信噪比最优的串行干扰消除子载波排列.与其他OFDMA上行链路干扰消除方法相比,它避免了Moore-Penrose伪逆矩阵的求解,具有解调后所有子载波上信号的信噪比联合最优、计算量低的特点,且可以应用于任何子载波分配策略中.仿真结果证明了该方法的正确性.
A fast serial interference cancellation method based on the best sequence of signal to noise ratio in orthogonal frequency division multiple access (OFDMA) uplink is proposed. By using the approximate orthogonal characteristics of each column of the interference matrix and obtaining the solution according to their correlation After adjusting the subcarrier arrangement with the best signal-to-noise ratio, it eliminates the Moore-Penrose pseudo-inverse matrix solution compared to other OFDMA uplink interference cancellation methods, with all the demodulated signals on all sub-carriers Signal-to-noise ratio is the best combination and low computational complexity, and can be applied to any subcarrier allocation strategy.The simulation results show the correctness of the method.