On the Achievable Rate of MISO Fading Channels With Instantaneous CSI Only at the Transmitter

被引：3

作者：

Khormuji, Majid Nasiri ^{[1
]}

Wang, Peng ^{[1
]}

Emadi, Mohammad Javad ^{[2
]}

Popovic, Branislav M. ^{[1
]}

机构：

[1] Huawei Technol Sweden AB, S-16494 Stockholm, Sweden

[2] Amirkabir Univ Technol, Tehran Polytech, Dept Elect Engn, Tehran 1591634311, Iran

来源：

IEEE COMMUNICATIONS LETTERS | 2020年 / 24卷 / 12期

关键词：

Receivers; Precoding; MISO communication; Channel estimation; Rayleigh channels; Transmitting antennas; Multiple antennas; capacity; CSI; maximum ratio transmission; equal gain transmission; fading;

D O I：

10.1109/LCOMM.2020.3013765

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We investigate Multiple-Input Single-Output (MISO) fading channels with perfect instantaneous Channel State Information (CSI) at the transmitter and with statistical average CSI at the receiver. We outline achievable rates for maximum ratio transmission and show that the rate loss of not having instantaneous CSI at the receiver behaves like an additional noise term whose variance is equal to one fourth of the transmit power. Similar results are obtained for equal gain transmission. The simulation results are in agreement with the theoretical bounds and indicate that requirement of instantaneous CSI at the receiver becomes obsolete up to a certain transmit power.

引用

页码：2710 / 2714

页数：5

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