8 papers
Robust Representation Learning in Masked Autoencoders
Anika Shrivastava, Renu Rameshan, Samar Agnihotri
Masked Autoencoders (MAEs) achieve impressive performance in image classification tasks, yet the internal representations they learn remain less understood. This work started as an…
Pilot Assignment for Distributed Massive MIMO Based on Channel Estimation Error Minimization
Mohd Saif Ali Khan, Karthik RM, Samar Agnihotri
Pilot contamination remains a major bottleneck in realizing the full potential of distributed massive MIMO systems. We propose two dynamic and scalable pilot assignment schemes des…
Decentralized Decoding with Adaptive Local Combining for Cell-Free Massive MIMO
Mohd Saif Ali Khan, Karthik RM, Samar Agnihotri
In existing literature, a two-stage architecture comprising of large-scale fading decoding (LSFD) at the central processing unit (CPU) and local combining at the access points (APs…
Latent Space Characterization of Autoencoder Variants
Anika Shrivastava, Renu Rameshan, Samar Agnihotri
Understanding the latent spaces learned by deep learning models is crucial in exploring how they represent and generate complex data. Autoencoders (AEs) have played a key role in t…
Energy-and Spectral-Efficiency Trade-off in Distributed Massive-MIMO Networks
Mohd Saif Ali Khan, Karthik RM, Samar Agnihotri
This paper investigates the energy efficiency (EE) and spectral efficiency (SE) trade-off in uplink distributed massive multiple-input multiple-output (D-mMIMO) systems. Unlike con…
Lossless Image Compression Using Multi-level Dictionaries: Binary Images
Samar Agnihotri, Renu Rameshan, Ritwik Ghosal
Lossless image compression is required in various applications to reduce storage or transmission costs of images, while requiring the reconstructed images to have zero information…
Joint AP-UE Association and Power Factor Optimization for Distributed Massive MIMO
Mohd Saif Ali Khan, Samar Agnihotri, Karthik R. M
The uplink sum-throughput of distributed massive multiple-input-multiple-output (mMIMO) networks depends majorly on Access point (AP)-User Equipment (UE) association and power cont…
Distributed Pilot Assignment for Distributed Massive-MIMO Networks
Mohd Saif Ali Khan, Samar Agnihotri, Karthik R. M
Pilot contamination is a critical issue in distributed massive MIMO networks, where the reuse of pilot sequences due to limited availability of orthogonal pilots for channel estima…