1 citations · 1 across the 13 of their papers we have counts for
18 papers
On Optimal Encodings and Systematicity in Function-Correcting Codes
Charul Rajput, Kanchana Lokshmii Jagatti, B. Sundar Rajan
Function-correcting codes (FCCs) protect the value of a function of the message against errors. In the original formulation of Lenz et al. (2023), the encoding is systemati…
Generalized Function-Correcting Partition Codes: Bounds and constructions
Charul Rajput, Mahak, V. Lalitha
We introduce generalized function-correcting partition codes (GFCPCs) that simultaneously protect multiple partitions of the message space against different numbers of errors. Give…
Existence and Constructions of Strict Function-Correcting Codes with Data Protection
Charul Rajput, B. Sundar Rajan, Ragnar Freij-Hollanti +1
Function-correcting codes with data protection simultaneously protect both the data and a function of the data at distinct error-correction levels. When the function receives stric…
Function-Correcting Partition Codes
Charul Rajput, B. Sundar Rajan, Ragnar Freij-Hollanti +1
We introduce function-correcting partition codes (FCPCs), which are a natural generalization of function-correcting codes (FCCs). An FCPC is defined directly on a partition of the…
Non-Existence of Some Function-Correcting Codes With Data Protection
Charul Rajput, B. Sundar Rajan, Ragnar Freij-Hollanti +1
In this paper, we consider the recently introduced concept of \emph{function-correcting codes (FCCs) with data protection}, which provide a certain level of error protection for th…
Function-Correcting Codes With Data Protection
Charul Rajput, B. Sundar Rajan, Ragnar Freij-Hollanti +1
Function-correcting codes (FCCs) are designed to provide error protection for the value of a function computed on the data. Existing work typically focuses solely on protecting the…
Perfectly-Private Analog Secure Aggregation in Federated Learning
Delio Jaramillo-Velez, Charul Rajput, Ragnar Freij-Hollanti +2
In federated learning, multiple parties train models locally and share their parameters with a central server, which aggregates them to update a global model. To address the risk o…
Secretive Hotplug Coded Caching
Mallikharjuna Chinnapadamala, Charul Rajput, B. Sundar Rajan
In this work, we consider a coded caching model called \textit{hotplug coded caching}, in which some users are offline during the delivery phase. The concept of Hotplug Placement D…
On Hierarchical Coded Caching with Offline Users
Rashid Ummer N. T., B. Sundar Rajan
This paper studies a two-layer hierarchical network in which some users are offline during the content delivery phase. A two-layer hierarchical network consists of a single server…
Function-Correcting Codes for Locally Bounded Functions
Charul Rajput, B. Sundar Rajan, Ragnar Freij-Hollanti +1
In this paper, we introduce a class of functions that assume only a limited number of values within a given Hamming -ball and call them locally -bounded functions. W…
Hierarchical Coded Caching in High Memory Regime with Coded Placement
Rajlaxmi Pandey, Charul Rajput, B. Sundar Rajan
We consider a two-layer hierarchical coded caching network where a server with a library of files is connected to mirrors, each having a cache memory of size . Each…
Single-Server Pliable Private Information Retrieval with Identifiable Side Information
Megha Rayer, Charul Rajput, B. Sundar Rajan
In Pliable Private Information Retrieval (PPIR) with a single server, messages are partitioned into non-overlapping classes. The user wants to retrieve a message from its desir…
A New Hotplug Coded Caching Scheme Using PDAs
Mallikharjuna Chinnapadamala, Charul Rajput, B. Sundar Rajan
In the original coded caching model introduced by Maddah-Ali and Niesen in 2014, the server starts broadcasting only after it receives demands from all the users. So, all the users…
Coded Caching for Hierarchical Two-Layer Networks with Coded Placement
Rajlaxmi Pandey, Charul Rajput, B. Sundar Rajan
We examine a two-layered hierarchical coded caching problem, a configuration addressed in existing research. This involves a server connected to mirrors, each of which serves…
Improved Hotplug Caching Schemes Using PDAs and t-Designs
Charul Rajput, B. Sundar Rajan
We consider a coded caching system in which some users are offline at the time of delivery. Such systems are called hotplug coded caching systems. A placement delivery array (PDA)…
Average Probability of Error for Single Uniprior Index Coding over Rayleigh Fading Channel
Anjana A Mahesh, Charul Rajput, Bobbadi Rupa +1
Ong and Ho developed optimal linear index codes for single uniprior index coding problems (ICPs) by finding a spanning tree for each of the strongly connected components of the cor…
On Cache-Aided Multi-User Private Information Retrieval with Small Caches
Charul Rajput, B. Sundar Rajan
In this paper, we propose a scheme for the problem of cache-aided multi-user private information retrieval with small caches, in which users are connected to non-colluding…
On cyclic LRC codes that are also LCD codes
Charul Rajput, Maheshanand Bhaintwal, Ramakrishna Bandi
Locally recoverable (LRC) codes provide a solution to single node failure in distributed storage systems, where it is a very common problem. On the other hand, linear complementary…