A Multiple Input-Multiple Output (MIMO) Adaptive Decision Feedback Equalizer (DFE) with Cancellation for Wideband Space-Time Communications
A Multiple Input-Multiple Output (MIMO) Adaptive Decision Feedback Equalizer (DFE) with Cancellation for Wideband Space-Time Communications
复制标题
用于宽带空时通信的具有消除功能的多输入多输出 (MIMO) 自适应决策反馈均衡器 (DFE)
DOI：
--
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
B. Daneshrad
中科院分区：
文献类型：
--
作者：
J. Frigon;B. Daneshrad
本文提出并研究了一种能够在多输入多输出(MIMO)频率选择性无线环境中传输高数据速率的新的接收机结构。推导了有限长度MIMO判决反馈均衡器(DFE)的最优解，并将其用于空时通信。提出了适用于MIMO结构的LMS和RLS自适应算法。通过仿真结果分析了这些自适应算法的收敛和性能。所提出的自适应解决方案不需要信道识别，计算量小于相应的最优解，并且允许所提出的MIMO接收器无缝地适应信道变化。
A new receiver structure able to deliver high data rates in a multiple input-multiple output (MIMO) frequency selective wireless environment is proposed and investigated in this paper. The optimal solution for the finite-length MIMO decision feedback equalizer (DFE) with cancellation is derived and used to illustrate the potential of this architecture for space-time communications. LMS and RLS adaptive algorithms are also presented for the MIMO architecture. The convergence and performance of these adaptive algorithms is analyzed through simulation results. The proposed adaptive solutions do not require channel identification, are less computationally intensive than their optimal solution counterpart, and allow the proposed MIMO receiver to seamlessly adapt to channel changes.