6 papers
Fundamental Limits of Hierarchical Secure Aggregation with Cyclic User Association
Xiang Zhang, Zhou Li, Kai Wan +3
Secure aggregation is motivated by federated learning (FL) where a cloud server aims to compute an {aggregated} model (i.e., weights of deep neural networks) of the locally-trained…
Optimal Communication and Key Rate Region for Hierarchical Secure Aggregation with User Collusion
Xiang Zhang, Kai Wan, Hua Sun +3
Secure aggregation is concerned with the task of securely uploading the inputs of multiple users to an aggregation server without letting the server know the inputs beyond their su…
Fundamental Limits of Distributed Linearly Separable Computation under Cyclic Assignment
Wenbo Huang, Kai Wan, Hua Sun +3
This paper studies the master-worker distributed linearly separable computation problem, where the considered computation task, referred to as linearly separable function, is a typ…
Information-Theoretic Limits of Bistatic Integrated Sensing and Communication
Tian Jiao, Kai Wan, Zhiqiang Wei +4
Bistatic sensing refers to scenarios where the transmitter (illuminating the target) and the sensing receiver (estimating the target state) are physically separated, in contrast to…
A New Construction Structure on Coded Caching with Linear Subpacketization: Non-Half-Sum Disjoint Packing
Minquan Cheng, Huimei Wei, Kai Wan +1
Coded caching is a promising technique to effectively reduce peak traffic by using local caches and the multicast gains generated by these local caches. We prefer to design a coded…
PDA Construction via Union of Cartesian Product Cache Configurations for Coded Caching
Jinyu Wang, Minquan Cheng, Kai Wan +1
Caching is an efficient technique to reduce peak traffic by storing popular content in local caches. Placement delivery array (PDA) proposed by Yan et al. is a combinatorial struct…