5 papers · 1 filter
Hybrid Bit and Semantic Communications for UAV-Enabled Wireless Power Transfer Networks: A Decision-Assisted Deep Reinforcement Learning Approach
Jingfu Li, Jingjing Cui, Chong Huang +5
Semantic communications which can significantly reduce spectrum consumption in wireless networks, have recently become a popular research area. When combined with wireless power tr…
Hybrid Generative Semantic and Bit Communications in Satellite Networks: Trade-offs in Latency, Generation Quality, and Computation
Chong Huang, Gaojie Chen, Jing Zhu +4
As satellite communications play an increasingly important role in future wireless networks, the issue of limited link budget in satellite systems has attracted significant attenti…
On the Design of Variable Modulation and Adaptive Modulation for Uplink Sparse Code Multiple Access
Qu Luo, Pei Xiao, Gaojie Chen +1
Sparse code multiple access (SCMA) is a promising non-orthogonal multiple access scheme for enabling massive connectivity in next generation wireless networks. However, current SCM…
Index Modulation for Fluid Antenna-Assisted MIMO Communications: System Design and Performance Analysis
Jing Zhu, Gaojie Chen, Pengyu Gao +3
In this paper, we propose a transmission mechanism for fluid antennas (FAs) enabled multiple-input multiple-output (MIMO) communication systems based on index modulation (IM), name…
Design and Performance Analysis of Index Modulation Empowered AFDM System
Jing Zhu, Qu Luo, Gaojie Chen +2
In this letter, we incorporate index modulation (IM) into affine frequency division multiplexing (AFDM), called AFDM-IM, to enhance the bit error rate (BER) and energy efficiency (…