NDLI: Propagation characteristics of 2.4GHz wireless channel in cornfields

Content Provider	IEEE Xplore Digital Library
Author	Siyu Li Hongju Gao
Copyright Year	2011
Description	Author affiliation: Key Laboratory of Modern Precision Agriculture System Integration Research, Ministry of Education, College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China (Siyu Li; Hongju Gao)
Abstract	Researches on propagation characteristics of wireless channel in cropland environments will lay the foundation for network deployments of wireless sensor network (WSN) for agricultural information acquirement. In this study, cropland with corn in maturity stage was selected as the representative of worst-case scenarios for radio propagation within cropland, and the propagation mechanisms and the impact factors on the propagation characteristics of wireless channel in this environment were analyzed. In addition, the power strength Radio Signal Strength Indicator (RSSI) and Packet Loss Rate (PLR) were measured in cornfields, and the node's coverage was further obtained. The experimental results were analyzed to provide the guidance and suggestion for the WSN deployments. In the engineering practice, the nodes shall be placed in open area such as wide walkways when it is possible in order to minimize propagation loss and increase the node's coverage effectively. And the antenna height of 1.4m to 1.6m is a good option, which will be more economic and feasible. Furthermore, experimental results also verified that rainfall doesn't have much effect on the propagation of 2.4GHz wireless signal. And although raising the transmitted power can increase the transmission range significantly, both the power usage of battery and the radio surveillance regulations have to be taken into account.
Starting Page	136
Ending Page	140
File Size	261882
Page Count	5
File Format	PDF
ISBN	9781612843063
e-ISBN	9781612843070
DOI	10.1109/ICCT.2011.6157849
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Agriculture Transmitting antennas Wireless communication Sensors
Content Type	Text
Resource Type	Article

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