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useful paper:介绍一种新的高精度OFDM系统高精度信道估计方法-useful paper : Introduction of a new system of high-precision high-precision OFDM channel estimation method
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摘要本文首先分析了自适应调制的原理, 它以频谱效率最高为准则, 在恒定功率约束条件下对接收信噪
比优化来选择不同调制阶数。然后引入时变多径信道模型, 通过仿真给出了自适应在此信道条件下的性能, 并分析
了信道估计误差对其性能的影响。
关键词自适应调制, 调制, 时变信道-Abstract This paper first analyzes the principle of adaptive modulation, spectral efficiency it up to standa
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OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。-OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to mult
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Multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) is very sensitive to the carrier frequency offset (CFO), which not only affects the channel estimation but also the selection of a minimum error probability based p
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In this paper, the problem of estimation
of fast time-varying radio channels is considered. A
new algorithm, Iterative Channel Estimation is
presented. This algorithm is designed for radio
channel estimation in multiple-input multipleoutput
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Millimeter wave (mmWave) systems will likely employ directional beamforming with large antenna arrays at both the
transmitters and receivers. Acquiring channel knowledge to
design these beamformers, however, is challenging due to the
large antenna
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本篇论文研究的 FDD 模式下的 Massive MIMO OFDM 系统的信道估计方法，通过分析
MIMO OFDM 系统存在的空时共同稀疏性，应用结构化理论处理 Massive MIMO 信道。为了
减少导频的消耗，提出适合的估计方法(In this paper, the channel estimation method of Massive MIMO OFDM system in FDD mode is studied Space-time common sparsity in MI
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