A low-complexity matched filter detector with parallel interference cancellation for massive MIMO systems
A low-complexity matched filter detector with parallel interference cancellation for massive MIMO systems
复制标题
用于大规模 MIMO 系统的具有并行干扰消除功能的低复杂度匹配滤波器检测器
DOI：
10.1109/wimob.2016.7763254
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
H. Ochiai
中科院分区：
文献类型：
--
作者：
Yuto Hama;H. Ochiai
大规模多输入多输出(MIMO)系统在发射端和接收端都有大量的天线，可以获得很高的频谱效率以及很高的稳定性和可靠性。然而，其实际应用的主要挑战之一是其符号检测的计算复杂度随着天线数量的增加而指数增长。在这项工作中，我们专注于一种低复杂度的基于并行干扰消除(PIC)匹配滤波(MF)检测的海量MIMO检测器的实现。一般而言，基于中频的检测器在高信噪比区域性能较差。然而，在低密度奇偶校验码(LDPC)等强大的信道编码和精心设计的PIC的帮助下，所提出的MF-PIC的差错性能可以接近甚至超过传统的基于最小均方误差(MMSE)的检测器，而复杂度要低得多。此外，由于其并行结构，基于并行结构的低延迟实现是可能的，因此适合于实际的大规模MIMO系统。
With a large number of antennas at the transmitter and receiver, massive multiple-input multiple-output (MIMO) systems can achieve substantially high spectral efficiency as well as high stability and reliability. Nevertheless, one of the major challenges for its practical use is its computational complexity for symbol detection that grows exponentially with the number of antennas. In this work, we focus on a low complexity implementation of massive MIMO detector based on matched filter (MF) detection with parallel interference cancellation (PIC). In general, MF-based detector performs poorly in the high SNR region. Nevertheless, with the help of powerful channel coding such as low-density parity-check (LDPC) codes and the well-designed PIC, the resulting error performance of the proposed MF-PIC can approach or even outperform the conventional minimum mean square error (MMSE)-based detector with much less complexity. Furthermore, due to its parallel structure, low latency implementation based on parallel architecture is possible and thus is suitable for practical massive MIMO systems.
影响因子：
11.2
作者：
Larsson, Erik G.;Edfors, Ove;Marzetta, Thomas L.
通讯作者：
Marzetta, Thomas L.