7 papers
Encoded Jamming Secure Communication for RIS-Assisted Systems
Hao Yang, Hao Xu, Kai Wan +2
This paper investigates a cooperative jamming (CJ)-aided secure wireless communication system. Conventional CJ schemes transmit Gaussian noise (GN) to improve security, which inher…
Reliability-Constrained Blind Beam Alignment for Backscatter-MIMO mounted Target in Cluttered Multipath Channels
Xuehui Dong, Kai Wan, Gui Zhou +3
Practical ISAC is constrained by static clutter and NLoS multipath, which obscure target-coupled echoes and induce spurious peaks for beam alignment. Existing receiver-side methods…
A Low-Complexity Framework for Multi-access Coded Caching Systems with Arbitrary User-cache Access Topology
Ting Yang, Kai Wan, Minquan Cheng +3
This paper studies the multi-access coded caching (MACC) problem with arbitrary user-cache access topology, which extends existing MACC models that rely on highly structured and co…
On Secure Gradient Coding with Uncoded Groupwise Keys
Xudong You, Kai Wan, Xiang Zhang +3
This paper considers a new secure gradient coding problem with uncoded groupwise keys, formalized as a (K, N, N_r, M, S) secure gradient coding model, where a user aims to compute…
Multiaccess Coded Caching with Heterogeneous Retrieval Costs
Wenbo Huang, Minquan Cheng, Kai Wan +3
The multiaccess coded caching (MACC) system, as formulated by Hachem {\it et al.}, consists of a central server with a library of files, connected to cache-less users via a…
Reconfigurable Intelligent Surface-Assisted Multiple-Antenna Coded Caching
Xiaofan Niu, Minquan Cheng, Kai Wan +2
Reconfigurable Intelligent Surface (RIS) has emerged as a promising technology to enhance the wireless propagation environment for next-generation wireless communication systems. T…