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首页> 外文期刊>Wireless Communications Letters, IEEE >Sparsity-Aware Direct Equalization of Time-Varying Channels for V2V Communications
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Sparsity-Aware Direct Equalization of Time-Varying Channels for V2V Communications

机译:用于V2V通信的时变通道的稀疏性直接均衡

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摘要

In this letter, we propose a new adaptive anti-interference equalization technique for fast time-varying channels. The equalization is implemented by basis expansion model (BEM) based time-varying (TV) finite impulse response (FIR) filters. By exploiting the sparsity of angle of arrival, we propose the idea of adaptive basis expansion for direct equalization. The optimization problem of the basis functions is formulated and solved by block orthogonal matching pursuit (BOMP) algorithm. We further propose a decision directed solution to improve the equalization performance. Simulation results show that the proposed methods exhibit a significant gain over conventional schemes.
机译:在这封信中,我们提出了一种新的自适应抗干扰均衡技术,用于快速时变通道。均衡由基于基于时变(TV)的时变(TV)有限脉冲响应(FIR)滤波器来实现的均衡。通过利用到达角度的稀疏性,我们提出了自适应基础扩展的思想,以实现直接均衡。通过块正交匹配追求(BOMP)算法制定和解决基本函数的优化问题。我们进一步提出了一个决策的解决方案来提高均衡性能。仿真结果表明,该方法具有常规方案的显着增益。

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