Performance Analysis of Reconfigurable Filtered OFDM for LDACS

In order to sustain the rapid growth in air traffic, the L -band Digital Aeronautical Communication System (LDACS) is proposed for air-to-ground communications. We recently proposed reconfigurable filtered OFDM (Ref-OFDM) based LDACS which offers better out-of-band (OOB) emission and hence, higher spectrum utilization than existing LDACS without compromising on the bit-error-rate (BER) and complexity. In this paper, we analyze the performance of Ref-OFDM based LDACS in terms of throughput and OOB emission for various resolution of Digital to Analog Converters (DAC). We also analyze the effects of pulse blanking technique on the BER for the transmission of bandwidth of 498 KHz and 732 KHz. The simulation results and analysis highlights the efficacy of the Ref-OFDM as an attractive alternative to existing LDACS.

[1]  M. Schnell,et al.  Physical layer specification of the L-band Digital Aeronautical Communications System (L-DACS1) , 2009, 2009 Integrated Communications, Navigation and Surveillance Conference.

[2]  Faouzi Bader,et al.  Reconfigurable filtered OFDM waveform for next generation air-to-ground communications , 2017, 2017 IEEE/AIAA 36th Digital Avionics Systems Conference (DASC).

[3]  A. S. Madhukumar,et al.  Design of a low complexity channel filter satisfying LDACS1 spectral mask specifications for air-to-ground communication , 2016, 2016 Integrated Communications Navigation and Surveillance (ICNS).

[4]  Ulrich Epple,et al.  LDACS: future aeronautical communications for air-traffic management , 2014, IEEE Communications Magazine.

[5]  M. Schnell,et al.  L-band compatibility of LDACS1 , 2011, 2011 IEEE/AIAA 30th Digital Avionics Systems Conference.

[6]  Niharika Agrawal,et al.  Spectral coexistence of candidate waveforms and DME in air-to-ground communications: Analysis via hardware software co-design on Zynq SoC , 2017, 2017 IEEE/AIAA 36th Digital Avionics Systems Conference (DASC).

[7]  Ulrich Epple,et al.  Compensation of the Impact of Interference Mitigation by Pulse Blanking in OFDM Systems , 2009, GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference.

[8]  Ulrich Epple,et al.  The LDACS1 Physical Layer Design , 2011 .

[9]  Michael Schnell,et al.  Overview of legacy systems in L-band and its influence on the future aeronautical communication system LDACS1 , 2014, IEEE Aerospace and Electronic Systems Magazine.

[10]  Faouzi Bader,et al.  New Spectrum Efficient Reconfigurable Filtered-OFDM Based L-Band Digital Aeronautical Communication System , 2019, IEEE Transactions on Aerospace and Electronic Systems.