Indoor propagation model in 2.4 GHz with QoS parameters estimation in VoIP calls, considering different types of walls and floors

2012 ◽  
Author(s):  
I. R. Gomes ◽  
B. S. L. Castro ◽  
R. L. Fraiha ◽  
H. S. Gomes ◽  
S. G. C. Fraiha ◽  
...  
Keyword(s):  
Parameters Estimation ◽  
Propagation Model ◽  
Indoor Propagation ◽  
Qos Parameters ◽  
Different Types

Parameterized indoor propagation model for mobile communication links

2016 ◽  
Vol 58 (4) ◽  
pp. 823-826 ◽  
Author(s):  
Alhareth Zyoud ◽  
Mohamed H. Habaebi ◽  
Rafiqul Islam
Keyword(s):  
Mobile Communication ◽  
Propagation Model ◽  
Indoor Propagation ◽  
Communication Links

An Adapted Indoor Propagation Model for Colonial Buildings

2019 ◽  
pp. 248-258
Author(s):  
Danny Curipoma Hernández ◽  
Patricia Ludeña-González ◽  
Francisco Sandoval ◽  
Carlos Macas Malán ◽  
Marco Morocho-Yaguana
Keyword(s):  
Propagation Model ◽  
Indoor Propagation

Parameters Estimation of Aircraft and RPAS Satellite Channels Based on IEEE 802.11a Standard

2019 ◽  
pp. 65-132
Keyword(s):  
Signal To Noise Ratio ◽  
Path Loss ◽  
Doppler Frequency ◽  
Parameters Estimation ◽  
Rician Fading ◽  
Ieee 802.11A ◽  
Different Types ◽  
Amplifier Gain ◽  
Satellite Channels ◽  
Digitally Modulated

This chapter deals with parameters estimation of satellite channels based on IEEE 802.11a standard. Dependencies of a signal to noise ratio on free space path loss for different types of modulation (BPSK, QPSK, 16QAM, 64QAM), noise temperatures, number of OFDM symbols, Doppler frequency offsets, satellite amplifier gain, and aircraft antenna diameter were received using model “OFDM_FSPL_Sat_FSPL_802.11a.” A method for parameters estimation of satellite OFDM communication channel was proposed. The spectrums and signals constellations of received signals were compared for different types of the amplifier nonlinearity. The developed model allows predicting spectral regrowth of digitally modulated OFDM signals due to the amplifier nonlinearity. Channel parameters were received for the Rayleigh and Rician fading, different types of Doppler spectrum, the gain of multipath channels, the delay time of message flow using models “OFDM_Multipath_Sat_Multipath_802.11a,” “OFDM_AWGN_Sat_Multipath_802.11a,” and “OFDM_FSPL_Sat_Rician_802.11a.”

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