12 papers
Hybrid Beamfocusing Design for RSMA-Enabled Near-Field Wideband Communications
Jiasi Zhou, Chintha Tellambura
Future wireless networks will utilize extremely large-scale antenna arrays (ELAAs) over high-frequency bands, which, however, produce near-field spherical wavefronts and spatial wi…
Hybrid Beamfocusing Design for RSMA-Enhanced Near-Field Secure Communications
Jiasi Zhou, Huiyun Xia, Chuan Wu +1
Near-field spherical wavefronts enable spotlight-like beam focusing to mitigate unintended energy leakage, creating new opportunities for physical-layer security (PLS). However, un…
Rate-Splitting Multiple Access for Secure Near-Field Integrated Sensing and Communication
Jiasi Zhou, Chintha Tellambura, Geoffrey Ye Li
Near-field integrated sensing and communication (ISAC) leverages distance-dependent channel variations for joint distance and angle estimation. However, full-digital architectures…
Sub-Connected Hybrid Beamfocusing Design for RSMA-Enabled Near-Field Communications with Imperfect CSI and SIC
Jiasi Zhou, Ruirui Chen, Yanjing Sun +1
Near-field spherical waves inherently encode both direction and distance information, enabling spotlight-like beam focusing for targeted interference mitigation. However, whether s…
Super-resolution Wideband Beam Training for Near-field Communications with Ultra-low Overhead
Cong Zhou, Changsheng You, Shuo Shi +2
In this paper, we propose a super-resolution wideband beam training method for near-field communications, which is able to achieve ultra-low overhead. To this end, we first study t…
Revolutionizing Medical Data Transmission with IoMT: A Comprehensive Survey of Wireless Communication Solutions and Future Directions
Jiasi Zhou, Yanjing Sun, Chintha Tellambura
Traditional hospital-based medical examination methods face unprecedented challenges due to the aging global population. The Internet of Medical Things (IoMT), an advanced extensio…
CRB-Rate Tradeoff in RSMA-enabled Near-Field Integrated Multi-Target Sensing and Multi-User Communications
Jiasi Zhou, Cong Zhou, Yanjing Sun +1
Extremely large-scale antenna arrays enhance spectral efficiency and spatial resolution in integrated sensing and communication (ISAC) networks while expanding the Rayleigh distanc…
Hybrid Beamforming Design for RSMA-enabled Near-Field Integrated Sensing and Communications
Jiasi Zhou, Chintha Tellambura, Geoffrey Ye Li
Integrated sensing and communication (ISAC) networks leverage extremely large antenna arrays and high frequencies. This inevitably extends the Rayleigh distance, making near-field…
Flexible Rate-Splitting Multiple Access for Near-Field Integrated Sensing and Communications
Jiasi Zhou, Cong Zhou, Cheng Zeng +1
This letter presents a flexible rate-splitting multiple access (RSMA) framework for near-field (NF) integrated sensing and communications (ISAC). The spatial beams configured to me…
Joint Beam Scheduling and Resource Allocation for Flexible RSMA-aided Near-Field Communications
Jiasi Zhou, Cong Zhou, Yijie Mao +1
Supporting immense throughput and ubiquitous connectivity holds paramount importance for future wireless networks. To this end, this letter focuses on how the spatial beams configu…
Near-field Beam Training with Sparse DFT Codebook
Cong Zhou, Chenyu Wu, Changsheng You +1
Extremely large-scale array (XL-array) has emerged as one promising technology to improve the spectral efficiency and spatial resolution of future sixth generation (6G) wireless sy…
Joint Uplink and Downlink Rate Splitting for Fog Computing-Enabled Internet of Medical Things
Jiasi Zhou, Yan Chen, Cong Zhou +1
The Internet of Medical Things (IoMT) facilitates in-home electronic healthcare, transforming traditional hospital-based medical examination approaches. This paper proposes a novel…