干扰条件下MIMO无线通信接收机的信息论比较

D. Bliss, K. W. Forsythe
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引用次数: 12

摘要

与传统的单输入单输出(SISO)方法相比,多输入多输出(MIMO)无线通信提供了许多潜在的优势,包括在给定的总发射功率下提高数据速率和提高抗干扰性。在本文中,各种接收器的细节被纳入到信道的影响中,以便可以利用信息论的性能界限来评估接收器的方法。考虑了两类环境:第一,信道复杂性,以窄带信道矩阵奇异值的分布为特征;第二,外部干扰。本文讨论的接收器方法包括最小均方误差,最小干扰,以及包含估计减法的迭代接收器,这里称为多通道多用户检测(MCMUD)。对信道和干扰估计的局限性作了各种假设。接收机性能的影响也证明了使用实验数据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Information theoretic comparison of MIMO wireless communication receivers in the presence of interference
Multiple-input multiple-output (MIMO) wireless communication provides a number of potential advantages over traditional single-input single-output (SISO) approaches, including increased data rates for a given total transmit power and improved robustness to interference. In this paper, the details of a variety of receivers are incorporated into the effects of the channel so that information-theoretic performance bounds can be exploited to evaluate receiver approaches. Two classes of environments are considered: first, channel complexity, characterized by the distribution of the narrowband channel-matrix singular values and second, external interference. Receiver approaches discussed in this paper include minimum-mean-squared error, minimum-interference, as well as an iterative receiver that incorporates estimation subtraction, denoted here as multichannel multiuser detection (MCMUD). Various assumptions are made about the limitations on channel and interference estimation. Receiver performance implications are also demonstrated using experimental data.
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