MU-MIMO无线局域网系统中隐式和显式信道反馈方法的比较

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2013-12-11 DOI:10.1109/PIMRC.2013.6666172

H. Lou, M. Ghosh, Pengfei Xia, R. Olesen

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引用次数: 44

摘要

在本文中，我们比较了在IEEE 802.11ac规范草案[1]中规定的多用户多输入多输出(MU-MIMO)系统中向发射机提供信道状态信息(CSI)的隐式和显式方法。比较是根据开销需求和包错误率(PER)性能进行的。我们还提出了一种混合反馈方案，该方案结合了显式和隐式反馈方法，从而受益于更频繁的校准，而不会产生额外的开销。

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A comparison of implicit and explicit channel feedback methods for MU-MIMO WLAN systems

In this paper we compare the implicit and explicit methods of providing channel state information (CSI) to the transmitter in a multi-user multiple-input-multiple-output (MU-MIMO) system as specified in the draft specification IEEE 802.11ac [1]. The comparison is made on the basis of both overhead requirements and packet-error-rate (PER) performance. We also propose a hybrid feedback scheme that combines the explicit and implicit feedback methods thus benefiting from more frequent calibration without incurring extra overhead.

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来源期刊

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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