Outage Performance for Aeronautical Satellite OFDM-IM System

Abstract

OFDM-IM technique can increase system throughput by transmitting extra bits using index sub-carriers without jeopardizing the bandwidth expansion. The demands and growth in aeronautical communications systems can be solved by deploying OFDM-IM for aeronautical satellite communications. But the challenge is the coexistence between the proposed satellite OFDM-IM based and L-Band legacy systems. This paper investigates the effect of system performance due to spectrum sharing between the terrestrial and satellite OFDM-IM systems. The system outage probability expressions based on different scenarios were derived. The results demonstrate the interference impact and can significantly degrade the system performance. The derived formulas help predict interference effects and further interference analysis.