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Doppler Compensation and Singular Value Decomposition in OFDM Based Aeronautical Communication


Author(s):

Reshma Chitharanjan , KMEA ENGINEERING COLLEGE; Smitha K. M.

Keywords:

Aeronautical Channel, Doppler Shift, En-Route, OFDM System, Singular Value Decomposition, Two Ray Channel

Abstract:

Aeronautical communication system provides various services to ground networks such as public safety, military services, etc. Major aspect in communication system is to provide a low delay, cost effective, and high speed data connectivity. Due to the high velocity of the aircraft Aeronautical communication is highly affected by Doppler shifts. The aeronautical en-route scenario is modeled as a two ray channel with a Line of Sight (LOS) component and a reflected signal. The DOAs of the LOS and reflected signal can be estimated by a hybrid method of eigen values and autocorrelation using the properties of the received signal covariance matrix. Based on the DOA, the signals are separated by singular value decomposition method; Doppler shifts are corrected individually and combined using diversity combining techniques at the receiver section. Simulation results show an increase in Bit Error Rate performance after diversity combining.


Other Details:

Manuscript Id :IJSTEV3I3037
Published in :Volume : 3, Issue : 3
Publication Date: 01/10/2016
Page(s): 218-222
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