METHOD FOR PARAMETERS ESTIMATION OF AVIATION SATELLITE COMMUNICATION CHANNEL
Keywords:adaptive modulation, aircraft antenna diameter, convolutional coding, frequency offset, free space path loss, OFDM, satellite communication, satellite amplifier linear gain, satellite transponder, signal to noise ratio
AbstractFor estimation of satellite OFDM communication channel parameters the original model of a channel "Aircraft-Satellite-Ground Station" with adaptive modulation was built using MATLAB Sіmulіnk software. Model consists of a source of information, an aircraft transmitter, an uplink/downlink path, a satellite transponder, and a ground station receiver. The 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, frequency offsets, satellite amplifier linear gain, and aircraft antenna diameter were received and analyzed. A method for parameters estimation of satellite OFDM communication channel was developed.
Global Air Navigation Plan for CNS/ATM Systems. ICAO, 1998. Doc. 9750. Available from Internet: <http://www.icao.int/publications/Documents/9750_2ed_en.pdf>.
Global Navigation Satellite System (GNSS) Manual. ICAO SARPS 2005, Doc. 9849. Available from Internet: http://www.icao.int/Meetings/PBNSymposium/Documents/ 9849_cons_en.pdf>.
Operational Concept. ICAO, 1998. Available from Internet: http://freeflightatm.org/ops_conc.html.>
Cioni S., Corazza G. E., Neri M., Vanelli-Coralli A. On the use of OFDM radio interface for satellite digital multimedia broadcasting systems. International Journal of Satellite Communications and Networking. – 2006. – v. 24. – N2. – P. 153–167.
Varade S., Kulat K. BER Comparison of Rayleigh Fading, Rician Fading and AWGN Channel using Chaotic Communication based
MIMO-OFDM System. International Journal of Soft Computing and Engineering. – 2012. – v.1. – N6. – P. 2231–2307.
Baddeley A. Going Forward with JTRS. Military Information Technology. – 2005. – v.9. – N7. – P. 8-13.
Jeon W.G., Chang K.H., Cho Y.S. An equalization technique for orthogonal frequencydivision multiplexing systems in time-variant multipath channels. IEEE Transactions on Communications. – 1999. – v.47. – N1. – P. 27-32.
Roque D., Siclet, C. Performances of Weighted Cyclic Prefix OFDM with Low-Complexity Equalization. IEEE Communications Letters. 2013. – v.17. – N3. – P. 439–442.