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首页> 外文会议>Proceedings of the 2016 IEEE International Conference on Wireless Communications, Signal Processing and Networking >Interference cancellation and channel estimation for MIMO-LTE-A Networks
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Interference cancellation and channel estimation for MIMO-LTE-A Networks

机译：MIMO-LTE-A网络的干扰消除和信道估计

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摘要

In MIMO-LTE-A Networks, maximum-likelihood receiver structure can suppress more than a single interfering layer if there are only two antennas in terminal receiver. Also, the channel state should be estimated for correctly recovering the transmitted information. Hence in this paper, we propose to design a Channel Quality Estimation with Parallel Inter Carrier Interference (ICI) cancellation technique for MIMO-LTE-A networks. Initially the maximum-likelihood detection - interference suppression (MLD-IS) scheme is applied to suppress the interfering links. Then in ICI cancellation process, a parallel interference cancellation (PIC) method and decision statistical combining (DSC) are utilized to cancel the ICI and improve data symbol detection. The channel state is estimated by means of Linear Minimum Mean Square Error (LMMSE) method based on the Channel Quality Indicator (CQI) and Pre-coding Matrix Indicator (PMI) feedbacks. Simulation results prove that the proposed technique reduces the computational process and the complexity.
机译：在MIMO-LTE-A网络中，如果终端接收器中只有两个天线，则最大似然接收器结构可以抑制多个干扰层。而且，应该估计信道状态以正确地恢复发送的信息。因此，在本文中，我们建议针对MIMO-LTE-A网络设计一种具有并行载波间干扰（ICI）消除技术的信道质量估计。最初，采用最大似然检测-干扰抑制（MLD-IS）方案来抑制干扰链路。然后，在ICI消除过程中，利用并行干扰消除（PIC）方法和决策统计组合（DSC）来消除ICI并改善数据符号检测。信道状态通过基于信道质量指标（CQI）和预编码矩阵指标（PMI）反馈的线性最小均方误差（LMMSE）方法估算。仿真结果表明，所提出的技术减少了计算过程和复杂度。

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