MIMO信道的天线解决方案:开关寄生天线

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI:10.1109/PIMRC.2001.965412

M. Wennström, T. Svantesson

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引用次数: 53

摘要

我们研究了开关寄生天线(SPA)，这是一种在MIMO系统中电子定向辐射方向图的新技术。所接收的信号模式之间的相关性显示为足够低以产生分集增益。研究了不同SPA配置下使用SPA的容量限制，发现在某些情况下，SPA的容量与阵列天线配置相当。最后，提出了一种时空分组编码方案来评估MIMO-SPA系统的误码率。研究发现，为了实现BER=10/sup -2/， SPA需要比天线阵列方案高5 dB的信噪比。然而，阵列天线需要每个天线都有一个无线电收发器，而SPA只使用一个收发器。

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An antenna solution for MIMO channels: the switched parasitic antenna

We investigate the switched parasitic antenna (SPA), which is a novel technique for electronically directing the radiation pattern in a MIMO system. The correlation between the received signal modes is shown to be sufficiently low to yield a diversity gain. The capacity limit using the SPA is investigated for different SPA configurations and it is found that the capacity is comparable with an array antenna configuration in certain situations. Finally, a space time block coding scheme is used to evaluate the bit error rate of a MIMO-SPA system. It is found that the SPA requires a 5 dB higher SNR than an antenna array solution to achieve a BER=10/sup -2/. However, the array antenna requires a radio transceiver for every antenna, as opposed to the SPA which uses only one transceiver.

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来源期刊

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598)

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