3 papers
math.CO2025
On the Codebook Design for NOMA Schemes from Bent Functions
Chunlei Li, Constanza Riera, Palash Sarkar +1
Uplink grant-free non-orthogonal multiple access (NOMA) is a promising technology for massive connectivity with low latency and high energy efficiency. In code-domain NOMA schemes,…
cs.CR2025
The Grain Family of Stream Ciphers: an Abstraction, Strengthening of Components and New Concrete Instantiations
Palash Sarkar
The first contribution of the paper is to put forward an abstract definition of the Grain family of stream ciphers which formalises the different components that are required to sp…
cs.IT2024
Multiple Spectrally Null Constrained Complete Complementary Codes of Various Lengths Over Small Alphabet
Rajen Kumar, Palash Sarkar, Prashant Kumar Srivastava +1
Complete complementary codes (CCCs) are highly valuable in the fields of information security, radar and communication. The spectrally null constrained (SNC) problem arises in rada…