Propagation Characteristics of IEEE 802.15.4 Radio Signal and Their Application for Location Estimation

2005 ◽  
Author(s):  
S. Hara ◽  
Dapeng Zhao ◽  
K. Yanagihara ◽  
J. Taketsugu ◽  
K. Fukui ◽  
...  
Keyword(s):  
Ieee 802.15.4 ◽  
Radio Signal ◽  
Location Estimation ◽  
Propagation Characteristics

scholarly journals Ionospheric D-region temperature relaxation and its influences on radio signal propagation after solar X-flares occurrence

2015 ◽  
Vol 19 (suppl. 2) ◽  
pp. 299-303 ◽  
Author(s):  
Jovan Bajcetic ◽  
Aleksandra Nina ◽  
Vladimir Cadez ◽  
Branislav Todorovic
Keyword(s):  
Radio Signal ◽  
Plasma Frequency ◽  
Low Frequency ◽  
Signal Propagation ◽  
Propagation Characteristics ◽  
Temperature Changes ◽  
D Region ◽  
Region Temperature ◽  
Temperature Relaxation ◽  
Ionospheric Modelling

In this paper our attention is focused on relations between radio signal propagation characteristics and temperature changes in D-region after solar X-flare occurrence. We present temperature dependencies of electron plasma frequency, the parameter that describes medium conditions for propagation of an electromagnetic wave, and the refractive index which describes how this wave propagates. As an example for quantitative calculations based on obtained theoretical equations we choose the reaction of the D-region to the solar X-flare occurred on May 5th, 2010. The ionospheric modelling is based on the experimental data obtained by low ionosphere observations using very low frequency radio signal.

GTS Allocation Of IEEE 802.15.4 Used in Irrigation System

2011 ◽  
Vol 3 (2) ◽  
pp. 101-105
Author(s):  
Prof. A.K. Patil Prof. A.K. Patil ◽  
◽  
Prof.A.J.Patil Prof.A.J.Patil
Keyword(s):  
Ieee 802.15.4 ◽  
Irrigation System

An Ultra-low Power Consumption MAC Protocol Complied with IEEE 802.15.4/4e for Wireless Smart Utility Networks

2016 ◽  
Vol 136 (11) ◽  
pp. 1555-1566 ◽  
Author(s):  
Jun Fujiwara ◽  
Hiroshi Harada ◽  
Takuya Kawata ◽  
Kentaro Sakamoto ◽  
Sota Tsuchiya ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Ieee 802.15.4 ◽  
Mac Protocol ◽  
Low Power Consumption ◽  
Ultra Low Power

Wave Propagation Characteristics on a Pipe-Type Cable in Particular Reference to the Proximity Effect

2013 ◽  
Vol 133 (12) ◽  
pp. 954-960 ◽  
Author(s):  
Akihiro Ametani ◽  
Kazuki Kawamura ◽  
Asha Shendge ◽  
Naoto Nagaoka ◽  
Yoshihiro Baba
Keyword(s):  
Wave Propagation ◽  
Proximity Effect ◽  
Propagation Characteristics
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