Ka-band land mobile satellite channel model: with rain attenuation and other weather impairments in equatorial zone

2002 ◽  
Author(s):  
Wenzhen Li ◽  
Choi Look Law ◽  
J.T. Ong ◽  
V. Dubey
Keyword(s):  
Channel Model ◽  
Rain Attenuation ◽  
Equatorial Zone ◽  
Ka Band ◽  
Mobile Satellite

Investigation of HAPs Propagation Channel for Wireless Access in a Tropical Region at Ka-Band

2017 ◽  
Vol 7 (3) ◽  
pp. 1204
Author(s):  
Felix Obite ◽  
Jafri Din ◽  
Kamaludin Mohammad Yusof ◽  
Basliza M. Noor
Keyword(s):  
Fading Channels ◽  
Channel Model ◽  
Rain Attenuation ◽  
Wireless Access ◽  
Rician Fading ◽  
Communication Link ◽  
Propagation Channel ◽  
Ka Band ◽  
Tropical Regions ◽  
Budget Analysis

<p>In the last few years, High Altitude Platforms (HAPs) have attracted considerable effort due to their ability to exploit the advantages of satellite and terrestrial-based systems. Rain attenuation is the most dominant atmospheric impairment, especially at such frequency band. This paper addresses the modelling of rain attenuation and describes a propagation channel model for HAPs at Ka-band to provide efficient and robust wireless access for tropical regions. The attenuation due to rain is modeled based on three years measured data for Johor Bahru to estimate the actual effect of rain on signals at Ka band. The radio propagation channel is usually characterized as a random multipath channel. Specifically, a statistical derivation of probability distribution function for Rayleigh and Rician fading channels are presented. The model consists of multiple path scattering effects, time dispersion, and Doppler shifts acting on the HAPs communication link. Simulation results represent the fading signal level variations. Results show perfect agreement between simulation and theoretical, thereby conforming to the multipath structures. The information obtained will be useful to system engineers for HAPs link budget analysis in order to obtain the required fade margin for optimal system performance in tropical regions.</p>

Ka-band land mobile satellite channel model incorporating weather effects

2001 ◽  
Vol 5 (5) ◽  
pp. 194-196 ◽  
Author(s):  
Wenzhen Li ◽  
Choi Look Law ◽  
V.K. Dubey ◽  
J.T. Ong
Keyword(s):  
Channel Model ◽  
Weather Effects ◽  
Ka Band ◽  
Mobile Satellite

Rain Attenuation Models for Mobile Satellite Communication in Sudan

2020 ◽  
Author(s):  
Arafa Omer Norain Malik ◽  
Mohammad Kamrul Hasan ◽  
Rashid A. Saeed ◽  
Rania A. Mokhtar ◽  
Siti Norul Huda Sheikh Abdullah ◽  
...  
Keyword(s):  
Satellite Communication ◽  
Rain Attenuation ◽  
Attenuation Models ◽  
Mobile Satellite ◽  
Mobile Satellite Communication

scholarly journals A Systemic Approach to the Compensation of Rain Attenuation in Ka-Band Communication Satellites

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Piero Angeletti ◽  
Marco Lisi
Keyword(s):  
Satellite Communications ◽  
Integrated Approach ◽  
Rain Attenuation ◽  
Systemic Approach ◽  
Band Spectrum ◽  
Effective Solution ◽  
Combined Approach ◽  
Adaptive Compensation ◽  
Ka Band ◽  
Satellite Applications

Rain attenuation at Ka-band is a severe phenomenon that drastically impairs satellite communications at these frequencies. Several adaptive compensation techniques have been elaborated to counteract its effects and most often applied one at a time. The present paper proposes the contemporary exploitation of different techniques in a combined approach. Such an integrated approach is thoroughly analyzed in a simplified scenario and will be shown to achieve a very effective solution, making the Ka-band spectrum fully available for broadband satellite applications and network-centric systems.

scholarly journals Tracking- and Scintillation-Aware Channel Model for GEO Satellite to Land Mobile Terminals at Ku-Band

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Ali M. Al-Saegh ◽  
A. Sali ◽  
J. S. Mandeep ◽  
Alyani Ismail
Keyword(s):  
Channel Model ◽  
Signal To Noise Ratio ◽  
Wide Band ◽  
Mobile Terminal ◽  
Directional Antennas ◽  
Coding Schemes ◽  
Significant Performance ◽  
Mobile Satellite ◽  
Tropospheric Scintillation ◽  
Ku Band

Recent advances in satellite to land mobile terminal services and technologies, which utilize high frequencies with directional antennas, have made the design of an appropriate model for land mobile satellite (LMS) channels a necessity. This paper presents LMS channel model at Ku-band with features that enhance accuracy, comprehensiveness, and reliability. The effect of satellite tracking loss at different mobile terminal speeds is considered for directional mobile antenna systems, a reliable tropospheric scintillation model for an LMS scenario at tropical and temperate regions is presented, and finally a new quality indicator module for different modulation and coding schemes is included. The proposedextended LMS channel (ELMSC)model is designed based on actual experimental measurements and can be applied to narrow- and wide-band signals at different regions and at different speeds and multichannel states. The proposed model exhibits lower root mean square error (RMSE) and significant performance observation compared with the conventional model in terms of the signal fluctuations, fade depth, signal-to-noise ratio (SNR), and quality indicators accompanied for several transmission schemes.

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