Iterative channel estimation and data detection in frequency-selective fading MIMO channels
Iterative channel estimation and data detection in frequency-selective fading MIMO channels
复制标题
频率选择性衰落 MIMO 信道中的迭代信道估计和数据检测
DOI：
10.1002/ett.958
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
T. Abe
中科院分区：
文献类型：
--
作者：
M. Loncar;R. Müller;J. Wehinger;C. Mecklenbräuker;T. Abe
通过多输入多输出（MIMO）无线信道传输的信号可以缓冲多址干扰（MAI）、多径传播和加性噪声。迭代多用户算法减轻了这些信号损伤。同时提供了性能和复杂性之间的良好权衡。本文提出的接收机进行信道估计。以迭代方式进行多用户检测和解码。估计频率的选择性。用导频符号初始化块衰落信道。在随后的迭代中。以适当的方式使用所有数据符号的软判决来改善信道估计。与其他方案相比，这种方法显著提高了接收机的整体性能。通过对不同参数设置的仿真，评估了接收机的误码率性能。版权所有2004 AEI。(少)
Signals transmitted through multiple-input multiple-output (MIMO) wireless channels buffer from multiple-access interference (MAI), multipath propagation and additive noise. Iterative multiuser algorithms mitigate these signal impairments. while offering a good tradeoff between performance and complexity. The receiver presented in this paper performs channel estimation. multiuser detection and decoding in an iterative manner. The estimation of the frequeucy selective. block-fading channel is initiated with the pilot symbols. In subsequent iterations. soft decisions of all the data symbols are used in an appropriate way to improve the channel estimates. This approach leads, to significant Improvement of the overall receiver performance, compared to other schemes. The bit-error-rate (BER) performance of the receiver is evaluated by simulations for different parameter setups. Copyright (C) 2004 AEI. (Less)