4 papers
Low-Complexity Channel Estimation for Internet of Vehicles AFDM Communications With Sparse Bayesian Learning
Xiangxiang Li, Haiyan Wang, Yao Ge +4
Affine frequency division multiplexing (AFDM) has been considered as a promising waveform to enable high-reliable connectivity in the internet of vehicles. However, accurate channe…
Affine Frequency Division Multiplexing Over Wideband Doubly-Dispersive Channels With Time-Scaling Effects
Xiangxiang Li, Haiyan Wang, Yao Ge +4
The recently proposed affine frequency division multiplexing (AFDM) modulation has been considered as a promising technology for narrowband doubly-dispersive channels. However, the…
Message Feedback Interference Cancellation Aided UAMP Iterative Detector for OTFS Systems
Xiangxiang Li, Haiyan Wang, Yao Ge +2
The designing of efficient signal detectors is important and yet challenge for orthogonal time frequency space (OTFS) systems in high-mobility scenarios. In this letter, we develop…
Reliable IoT Storage: Minimizing Bandwidth Use in Storage Without Newcomer Nodes
Xiaobo Zhao, Daniel E. Lucani, Xiaohong Shen +1
This letter characterizes the optimal policies for bandwidth use and storage for the problem of distributed storage in Internet of Things (IoT) scenarios, where lost nodes cannot b…