Semi-Analytical Performance Prediction Method for Iterative MMSE-IC Detection and Semi-Blind Channel Estimation
Semi-Analytical Performance Prediction Method for Iterative MMSE-IC Detection and Semi-Blind Channel Estimation
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DOI：
10.1109/vetecs.2011.5956353
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发表时间：
2011-05
期刊：
影响因子：
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通讯作者：
Baozhu Ning;R. Visoz;A. Berthet
中科院分区：
文献类型：
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作者：
Baozhu Ning;R. Visoz;A. Berthet
本文提出了一种新颖的半解析性能预测方法，用于迭代 MMSE-IC 检测和半盲信道估计。它在单用户 MIMO-OFDM 传输的背景下进行了验证，我们通过频域中的离散输入 MIMO P 块衰落平坦瑞利信道进行建模。所提出的方法将现有的符号互信息有效信噪比度量（MIESM）链接到系统方法扩展到接收器侧不完善的信道状态信息和半盲信道估计的环境。它允许根据初始导频辅助信道估计和长期信道分布信息来计算平均误块率 (BLER)。因此，所提出的方法在实际数据传输之前利用了所有可用的先验信息，并且可以同等地用于慢速和快速链路自适应。
In this paper, a novel semi-analytical performance prediction method is proposed for iterative MMSE-IC detection and semi-blind channel estimation. It is examplified in the context of single-user MIMO-OFDM transmission which we model by a discrete-input MIMO P-block fading flat Rayleigh channel in the frequency domain. The proposed method extends existing symbolwise Mutual Information Effective SNR Metric (MIESM) link-to system approach to the context of imperfect channel state information and semi-blind channel estimation at the receiver side. It allows to compute the average Block Error Rate (BLER) conditional on an initial pilot-assisted channel estimation and long term channel distribution information. Thus, the proposed method takes advantage of all the available a priori information before actual data transmission and could be equally employed for slow and fast link adaptation.