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Title: Wireless sensor networks propagation study in mixed-crop farming
Authors: Harun, A.
Latifah Munirah, Kamarudin
Ammar, Zakaria
Ndzi, D. L.
Ali Yeon, Md Shakaff, Prof. Dr.
Mahmad Nor, Jaafar, Prof. Madya Dr.
???metadata.dc.contributor.url???: zz_harun@yahoo.com
Keywords: Wireless sensor networks;RSSI;Received signal strength;Unisense
Issue Date: 27-Feb-2012
Publisher: Universiti Malaysia Perlis (UniMAP)
???metadata.dc.publisher.department???: School of Mechatronic Engineering
Series/Report no.: Proceedings of the International Conference on Man-Machine Systems (ICoMMS 2012)
Abstract: A study on the performance of wireless systems from a network coverage and link quality perspectives is critical to ensure a reliable and cost effective deployment of the network in mixed-crop farm area. This paper presents results of signal power measurements in a mixed-crop farm with varying vegetation density. A small difference in signal strength between antenna heights of 0.5 m and 1m for a flat open grass field was observed. However a substantial reduction in signal strength in the presence of thick vegetation on the farmland which limited coverage to only 20 m range was observed. In addition not much increase in signal strength for measurements in a greenhouse with grape trellis canopy was seen. This is contrary to enhancements of received signal strength by lateral waves propagating along the canopy observed in a forest measurement [8]. The paper also compares network coverage for the same type of vegetation in greenhouse and outdoor environment.
Description: International Conference on Man Machine Systems (ICoMMS 2012) organized by School of Mechatronic Engineering, co-organized by The Institute of Engineer, Malaysia (IEM) and Society of Engineering Education Malaysia, 27th - 28th February 2012 at Bayview Beach Resort, Penang, Malaysia.
URI: http://hdl.handle.net/123456789/20709
Appears in Collections:Conference Papers
Institute of Sustainable Agrotechnology (Articles)
Ali Yeon, Md Shakaff, Prof. Dr.

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