Maximum inner product method for extracting the path-loss parameters in primary transformer substations

In order to deploy short-range wireless communication devices in the primary transformer substation, a Maximum Inner Product (MIP) Method is proposed to extract the path-loss parameters in 110kV and 220kV primary transformer substations. The maximum inner product of the testing data is calculated to...

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Published in:China communications 2019-04, Vol.16 (4), p.120-129
Main Authors: Li, Qiang, Zhang, Hongxin, Zheng, Tianyi, Wang, Xueli, Lv, Yinghua
Format: Article
Language:English
Subjects:
Antenna measurements
Frequency measurement
Indexes
path-loss
primary transformer substation
Substations
Transmitting antennas
Wireless communication
ZigBee
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Zhang, Hongxin
Zheng, Tianyi
Wang, Xueli
Lv, Yinghua
description In order to deploy short-range wireless communication devices in the primary transformer substation, a Maximum Inner Product (MIP) Method is proposed to extract the path-loss parameters in 110kV and 220kV primary transformer substations. The maximum inner product of the testing data is calculated to find out the loss index n and the standard deviation σ, and then the path-loss models can be set up. By comparing the MIP with Minimum Mean Square estimation (MMSE) and Cumulative Sum (CUSUM), MIP can match the measured values best. In order to apply the MIP path-loss model, under the initial signal to noise ratio (SNR) at 5 dB and 10 dB, a ZigBee simulation system is constructed to validate the situation that bit error rate (BER) varies with distance. And the Zig-Bee devices with 5 units are tested in a 220kV primary transformer substation. The result of the test proves that the path-loss model is accurate.
doi_str_mv 10.12676/j.cc.2019.04.009
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source IEEE Electronic Library (IEL) Journals
subjects Antenna measurements
Frequency measurement
Indexes
path-loss
primary transformer substation
Substations
Transmitting antennas
Wireless communication
ZigBee
title Maximum inner product method for extracting the path-loss parameters in primary transformer substations
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