Abstract

Communication systems face challenges from high-power adjacent channel signals, or blockers, inducing nonlinear behavior in RF front ends. Ensuring robust performance in the presence of blockers is crucial for IoT and other spectrum-consuming devices coexisting with advanced transceivers. This paper proposes a flexible, data-driven solution using a Deep Belief Network (DBN) to mitigate third-order intermodulation distortion (IMD) during demodulation. Numerical evaluations of AI-enhanced receivers employing DBN as an IMD canceler and demodulator show significant improvements in bit error rate (BER) performance. The effectiveness of DBN varies with RF front end characteristics, notably the third-order intercept point (IP3).

Authors

E. Shamsudeen¹, B. Suganthi², P. Ramesh³, C. Saravanakumar⁴
EMEA College of Arts and Science, India¹, Dhanalakshmi Srinivasan University, India², Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, India³, SRM Valliammai Engineering College, India⁴

Keywords

Deep Belief Network, IMD Cancellation, Nonlinear Receivers, RF Front End, Bit Error Rate