基于时空块映射的自适应速率MIMO系统

The 57th IEEE Semiannual Vehicular Technology Conference, 2003. VTC 2003-Spring. Pub Date : 2003-04-22 DOI:10.1109/VETECS.2003.1207649

K. J. Hwang, Sok-Kyu Lee, K. Chang

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引用次数: 6

摘要

MIMO系统在发射端和接收端均采用多天线，大大提高了频谱效率。但MIMO系统的频谱效率取决于空间信道特性。因此需要根据空间信道条件进行自适应传输。本文提出了一种基于空时块映射的自适应速率MIMO系统。速率由有效通道数控制。空间信道的有效数由空间信道特性确定，是1到最小发射和接收天线数之间的整数。通过根据空间信道条件自适应切换MIMO模式，可以实现吞吐量最大化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Adaptive rate MIMO system using space-time block mapping

The MIMO system employing multiple antennas at both the transmitter and the receiver increases the spectral efficiency greatly. But the spectral efficiency of MIMO system depends on spatial channel characteristics. So some kind of adaptive transmission is required according to spatial channel conditions. In this paper, we propose adaptive rate MIMO system using space-time block mapping. The rate is controlled by effective number of spatial channels. The effective number of spatial channels is determined from spatial channel characteristics and is integer number from 1 to the minimum number of transmit and receive antennas. By switching the MIMO mode adaptively according to spatial channel conditions, throughput can be maximized.

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The 57th IEEE Semiannual Vehicular Technology Conference, 2003. VTC 2003-Spring.

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