INVESTIGATION OF MODULATION SCHEME AND TRANSMITTER NONLINEARITY IMPACT ON ADS-B MESSAGES TRANSMISSION VIA OFDM SATELLITE LINK
Keywords:ADS-B, convolutional coding, free space loss, OFDM, satellite communication, satellite transponder, Viterbi decoder
AbstractFor investigation of modulation scheme impact on ADS-B messages transmission via satellite link the original model of a communication channel "Aircraft-to-Satellite-to-Ground Station" was built using MATLAB Sіmulіnk. Model consists of a source of information, aircraft transmitter, uplink/downlink path, satellite transponder, 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), for different satellite transponder noise temperatures, channel bandwidth, number of OFDM symbols and different types of aircraft transmitter nonlinearity were received and investigated.
Baddeley, A. Going Forward with JTRS. Military Information Technology. 2005. 9(7). P. 8-13.
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. 24(2). P. 153-167.
Iridium-Adds-ADS-B-to-Iridium-NEXT-Constellation. 2012. Available from Internet: <http://www.aviationtoday.com/the-checklist/76558.html>
Jeon, W.G.; Chang, K.H.; Cho, Y.S. An equalization technique for orthogonal frequency-division multiplexing systems in time-variant multipath channels. IEEE Transactions on Communications. 1999. 47(1). P. 27–32. doi:10.1109/26.74781.
Kharchenko, V. P.; Barabanov, Y. M.; Grekhov, A. M. Modeling of ADS-B Data Transmission via Satellite. Aviation. 2013. 17(3). P. 119-127.
Kharchenko, V. P.; Barabanov, Y. M.; Grekhov, A. M. Modeling of Aviation Telecommunications. Proceedings of the National Aviation University. 2012. N 1. P. 5-13 (in Ukrainian).
Kharchenko, V. P.; Barabanov, Y. M.; Grekhov, A. M. Modeling of Satellite Channel for Transmission of ADS-B Messages. Proceedings of the National Aviation University. 2012. N 3. P. 9-14 (in Ukrainian).
Kharchenko, V. P.; Barabanov, Y. M.; Grekhov, A. M. Modelling of „Satellite-To-Aircraft‟ Link for Self-Separation. Transport. 2013. N 28(4). P. 120-128.
Minimum Aviation System Performance Standards for Automatic Dependent Surveillance-Broadcast (ADS-B). RTCA. Inc. 2002. DO-242A.
Roque, D.; Siclet, C. Performances of Weighted Cyclic Prefix OFDM with Low-Complexity Equalization. IEEE Communications Letters. 2013. N 17(3). P. 439–442. doi:10.1109/ /LCOMM.2013.011513.121997.
Sagias, N.; Zogas, D.A.; Karagiannidis, G.K.; Tombras, G.S. Burst Timing Synchronization for OFDM-based LEO and MEO Wideband Mobile Satellite Systems. The Seventh International Workshop on Digital Signal Processing Techniques for Space Communications. 2001.