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Author

Sanjeev Sharma

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2 papers indexed here

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Preprint Sep 2026

Performance Analysis of AFDM Transceiver Under Practical IQ Imbalance

This paper investigates the impact of in-phase/quadrature (IQ) imbalance on signal detection in affine frequency-division multiplexing (AFDM) systems over doubly dispersive Rayleigh fading channels. The bit error rate (BER) performance of AFDM under various IQ mismatch conditions is evaluated and compared with that of...

Rishikesh Bharti, Tonmoy Rajkhowa, Sanjeev Sharma et al. · 0 citations
2026

DC-FTNet: A Parameter-Free Fourier-Based Lightweight Network for Automatic Modulation Classification in OTFS

Automatic modulation classification (AMC) for orthogonal time frequency space (OTFS) systems is crucial in non-cooperative scenarios. While vision-transformer (ViT)-based classifiers achieved high accuracy, they suffered from quadratic computational complexity due to self-attention. To address this limitation, this let...

Tonmoy Rajkhowa, Sanjeev Sharma, Kuntal Deka et al. · 0 citations

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