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Sagnik Bhattacharya

3 accepted papers

2025

ItDPDM: Information-Theoretic Discrete Poisson Diffusion Model

NeurIPS 2025poster

Generative modeling of non-negative, discrete data, such as symbolic music, remains challenging due to two persistent limitations in existing methods. Firstly, many approaches rely on modeling continuous embeddings, which is suboptimal for inherently discrete data distributions. Secondly, most model…

Cited by 0SourceScholar
2025

Optimum Power-Subcarrier Allocation and Time-Sharing in Multicarrier NOMA Uplink

ICASSP 2025accepted

Currently used resource allocation methods for uplink multicarrier non-orthogonal multiple access (MC-NOMA) systems have multiple shortcomings. Current approaches either allocate the same power across all subcarriers to a user, or use heuristic-based near-far, strong channel-weak channel user groupi…

Cited by 0SourceScholar
2025

Successive Interference Cancellation-aided Diffusion Models for Joint Channel Estimation and Data Detection in Low Rank Channel Scenarios

ICASSP 2025accepted

This paper proposes a novel joint channel-estimation and source-detection algorithm using successive interference cancellation (SIC)-aided generative score-based diffusion models. Prior work in this area focuses on massive MIMO scenarios, which are typically characterized by full-rank channels, and…

Cited by 0SourceScholar