Open Access Open Access  Restricted Access Subscription or Fee Access

Fade Mitigation for Air-to-Ground Communication in Aeronautical Telemetry

Manisha Bhatt, Gopal Patel, Mukesh Pathela


Aeronautical Telemetry links were comprised of a transmit antenna mounted on the underside of fuselage and a fixed ground station equipped with a tracking antenna. Air-to-ground channel for this telemetry link can be estimated as Line of sight propagation. But there is link loss observed at ground control station for certain instant of time. Possible causes of link loss in this case are due to aircraft maneuvering and fading. So analysis of various fade mitigation techniques as well as bit error rate (BER) and signal to noise (SNR) ratio performance comparison between selection diversity, equal gain combining and maximal ratio combining scheme is done. Finally bit error rate performance comparison curve between maximal ratio scheme (MRC) and Alamouti dual antenna transmission scheme is plotted, in order to find out the best scheme for fade mitigation, among all the above mentioned schemes.


Aircraft Maneuvering, Aeronautical Telemetry, Alamouti Code, Diversity, Fade Mitigation, SC, MRC, EGC

Full Text:



Y. S. Meng and Y.H Lee, “Study of Shadowing Effect by Aircraft Maneuvering for Air-to-Ground Communication,” AEU-International Journal of Electronics and Communications, Elsevier, 2011.

R.M. Jha, S.A. Bokhari, V. Sudhakar and P.R. Mahapatra, “Ray analysis on a class of hybrid cylindrical aircraft wings,” Electronics Letters, UK, vol. 24, pp. 21-22, Jan. 1988.

R.M. Jha, D.J. Edwards and W. Wiesbeck, “UTD analysis of the hyperbolic cylinders for applications to onboard aircraft antennas,” IEEE 8th Int. Conf. on Antennas and Propagation, ICAP'93, Edinburgh, UK, pp. 959-962, Mar. 30 – Apr. 2, 1993.

T.S. Rappaport, “Wireless Communication: Principles and Practice”, 2nd Edition, Prentice-Hall, India.

D. G. Brennan, “Linear diversity combining techniques,” Proc. IRE, vol. 47, pp.1075–1102, 1959.

R.G. Vaughan and N. L. Scott, “Closely spaced monopoles for mobile communications,” Radio Sci., vol. 28, pp. 1259–1266, 1993

S. Alamouti, “A Simple Transmitter Diversity Technique for Wireless Communications” , IEEE Journal on Selected Areas of Communications, Special Issue on Signal Processing for Wireless Communications, vol.16, no.8, pp.1451-1458, Oct 1998.


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.