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5G系统中一种大规模MIMO信号检测加速算法

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在多输入多输出(Multiple Input Multiple Output,MIMO)系统中,由于MIMO系统配置的大量天线,传统检测算法难以平衡由于算法复杂度高造成的系统性能损失.在保证达到较好性能的前提下,尽可能降低复杂度,提出一种基于分块矩阵和修正因子的MBSOR(Block-Modification Successive Over-Relaxation)检测算法,该算法对滤波矩阵进行分块使对角矩阵获得更多的信道信息,并针对迭代矩阵引入修正因子,以进一步加快收敛速度.通过该算法与传统逐次超松弛(Successive Over-Relaxation,SOR)算法模拟仿真,表明MBSOR算法在减少重复次数的同时,比SOR算法的误码率更逼近最优解.
AN ACCELERATED ALGORITHM FOR LARGE-SCALE MIMO SIGNAL DETECTION IN 5G SYSTEM
In multiple input multiple output(MIMO)system,because the MIMO system supports a large number of antennas,it is difficult and almost impossible for traditional detection algorithms to balance the system performance loss caused by the high complexity of the algorithm.Under the premise of ensuring better performance requirements,in order to reduce complexity as much as possible,we propose a block-modification successive over-relaxation(MBSOR)detection algorithm based on the block matrix and the correction factor.The algorithm blocked the filter matrix to obtain more channel information from the diagonal matrix and introduced a correction factor to the iterative matrix to further accelerate the convergence speed.Through the simulation of this algorithm and the traditional successive over-relaxation(SOR)algorithm,it is shown that the MBSOR algorithm is closer to the optimal solution than the SOR algorithm while reducing the number of repetitions.

Massive MIMOSignal detectionSOR algorithmMatrix blockCorrection factorMBSOR algorithm

吴婷、席兵、邓炳光、周维海

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重庆邮电大学通信与信息工程学院 重庆 400065

大规模MIMO 信号检测 SOR算法 矩阵分块 修正因子 MBSOR算法

2019年重庆市技术创新与应用发展专项重大主题专项

cstc2019jscxzdztzxX0002

2024

计算机应用与软件
上海市计算技术研究所 上海计算机软件技术开发中心

计算机应用与软件

CSTPCD北大核心
影响因子:0.615
ISSN:1000-386X
年,卷(期):2024.41(9)