6 papers
An Exploration of the Heterogeneous Unsourced MAC
Allen Hao, Stefano Rini, Vamsi Amalladinne +2
The unsourced MAC model was originally introduced to study the communication scenario in which a number of devices with low-complexity and low-energy wish to upload their respectiv…
Unsourced Random Access with Coded Compressed Sensing: Integrating AMP and Belief Propagation
Vamsi K. Amalladinne, Asit Kumar Pradhan, Cynthia Rush +2
Sparse regression codes with approximate message passing (AMP) decoding have gained much attention in recent times. The concepts underlying this coding scheme extend to unsourced r…
On Approximate Message Passing for Unsourced Access with Coded Compressed Sensing
Vamsi K. Amalladinne, Asit Kumar Pradhan, Cynthia Rush +2
Sparse regression codes with approximate message passing (AMP) decoding have gained much attention in recent times. The concepts underlying this coding scheme extend to unsourced a…
Polar Coding and Random Spreading for Unsourced Multiple Access
Asit Kumar Pradhan, Vamsi K. Amalladinne, Krishna R. Narayanan +1
This article presents a novel transmission scheme for the unsourced, uncoordinated Gaussian multiple access problem. The proposed scheme leverages notions from single-user coding,…
Factored LT and Factored Raptor Codes for Large-Scale Distributed Matrix Multiplication
Asit Kumar Pradhan, Anoosheh Heidarzadeh, Krishna R. Narayanan
We propose two coding schemes for distributed matrix multiplication in the presence of stragglers. These coding schemes are adaptations of LT codes and Raptor codes to distributed…
Sparse IDMA: A Joint Graph-Based Coding Scheme for Unsourced Random Access
Asit Pradhan, Vamsi Amalladinne, Avinash Vem +2
This article introduces a novel communication paradigm for the unsourced, uncoordinated Gaussian multiple access problem. The major components of the envisioned framework are as fo…