GAE and OBE Enhanced Interference Mitigation Techniques in LDACS
Interference mitigation in L-band digital aeronautic communication systems from legacy users is vital due to stringent safety requirements and steady-state increase in air traffic. This paper proposes an L-band digital aeronautic communication systems receiver prototype that employs nonlinear operat...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/9/1/45 |
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| author | Miziya Keshkar Raja Muthalagu Abdul Rajak Libin K. Mathew |
| author_facet | Miziya Keshkar Raja Muthalagu Abdul Rajak Libin K. Mathew |
| author_sort | Miziya Keshkar |
| collection | DOAJ |
| description | Interference mitigation in L-band digital aeronautic communication systems from legacy users is vital due to stringent safety requirements and steady-state increase in air traffic. This paper proposes an L-band digital aeronautic communication systems receiver prototype that employs nonlinear operations to reduce the interference from the prime interference contributor distance measuring equipment. The knowledge of genie-aided estimator and optimum Bayesian estimator is utilized to propose improved and low complexity nonlinear devices, such as a genie-aided estimator enhanced pulse peak attenuator, genie-aided estimator enhanced pulse peak limiter, joint genie-aided estimator enhanced pulse peak attenuator, joint genie-aided estimator enhanced pulse peak limiter, optimum Bayesian estimator enhanced pulse peak attenuator, optimum Bayesian estimator enhanced pulse peak limiter, joint optimum Bayesian estimator enhanced pulse peak attenuator and joint optimum Bayesian estimator enhanced pulse peak limiter. The performance of the proposed methods is compared with the classical pulse blanking in terms of the received bit error rate for different signal-to-noise ratios. The proposed genie-aided estimator enhanced methods exhibited SNR saving in the range of 2 to 2.5 dB at a bit error rate of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mrow><mo>−</mo><mn>1</mn></mrow></msup></semantics></math></inline-formula>. At the same BER, the proposed optimum Bayesian estimator enhanced methods achieved SNR saving in the range of 2.5 to 3 dB. |
| first_indexed | 2024-03-10T03:10:16Z |
| format | Article |
| id | doaj.art-3e242d4476994fb184a7842f46808212 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-10T03:10:16Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-3e242d4476994fb184a7842f468082122023-11-23T12:34:35ZengMDPI AGAerospace2226-43102022-01-01914510.3390/aerospace9010045GAE and OBE Enhanced Interference Mitigation Techniques in LDACSMiziya Keshkar0Raja Muthalagu1Abdul Rajak2Libin K. Mathew3Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science Dubai Campus, Dubai 345055, United Arab EmiratesDepartment of Computer Science, Birla Institute of Technology and Science Dubai Campus, Dubai 345055, United Arab EmiratesDepartment of Electrical and Electronics Engineering, Birla Institute of Technology and Science Dubai Campus, Dubai 345055, United Arab EmiratesInstitute for Infocomm Research (I2R)—A*STAR, Singapore 138632, SingaporeInterference mitigation in L-band digital aeronautic communication systems from legacy users is vital due to stringent safety requirements and steady-state increase in air traffic. This paper proposes an L-band digital aeronautic communication systems receiver prototype that employs nonlinear operations to reduce the interference from the prime interference contributor distance measuring equipment. The knowledge of genie-aided estimator and optimum Bayesian estimator is utilized to propose improved and low complexity nonlinear devices, such as a genie-aided estimator enhanced pulse peak attenuator, genie-aided estimator enhanced pulse peak limiter, joint genie-aided estimator enhanced pulse peak attenuator, joint genie-aided estimator enhanced pulse peak limiter, optimum Bayesian estimator enhanced pulse peak attenuator, optimum Bayesian estimator enhanced pulse peak limiter, joint optimum Bayesian estimator enhanced pulse peak attenuator and joint optimum Bayesian estimator enhanced pulse peak limiter. The performance of the proposed methods is compared with the classical pulse blanking in terms of the received bit error rate for different signal-to-noise ratios. The proposed genie-aided estimator enhanced methods exhibited SNR saving in the range of 2 to 2.5 dB at a bit error rate of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mrow><mo>−</mo><mn>1</mn></mrow></msup></semantics></math></inline-formula>. At the same BER, the proposed optimum Bayesian estimator enhanced methods achieved SNR saving in the range of 2.5 to 3 dB.https://www.mdpi.com/2226-4310/9/1/45OFDMLDACSaeronautical communicationimpulse noisepulse blanking |
| spellingShingle | Miziya Keshkar Raja Muthalagu Abdul Rajak Libin K. Mathew GAE and OBE Enhanced Interference Mitigation Techniques in LDACS Aerospace OFDM LDACS aeronautical communication impulse noise pulse blanking |
| title | GAE and OBE Enhanced Interference Mitigation Techniques in LDACS |
| title_full | GAE and OBE Enhanced Interference Mitigation Techniques in LDACS |
| title_fullStr | GAE and OBE Enhanced Interference Mitigation Techniques in LDACS |
| title_full_unstemmed | GAE and OBE Enhanced Interference Mitigation Techniques in LDACS |
| title_short | GAE and OBE Enhanced Interference Mitigation Techniques in LDACS |
| title_sort | gae and obe enhanced interference mitigation techniques in ldacs |
| topic | OFDM LDACS aeronautical communication impulse noise pulse blanking |
| url | https://www.mdpi.com/2226-4310/9/1/45 |
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