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cs.IT2026
Caching Yields up to 5x Spectral Efficiency in Multi-Beam Satellite Communications
Hui Zhao, Dirk Slock, Petros Elia
This paper examines the integration of vector coded caching (VCC) into multi-beam satellite communications (SATCOM) systems and demonstrates that even limited receiver-side caching…
cs.IT2025
Models, Methods and Waveforms for Estimation and Prediction of Doubly Sparse Time-Varying Channels
Wissal Benzine, Ali Bemani, Nassar Ksairi +1
This paper investigates channel estimation for linear time-varying (LTV) wireless channels under double sparsity, i.e., sparsity in both the delay and Doppler domains. An on-grid a…
cs.IT2024
Affine Frequency Division Multiplexing for Compressed Sensing of Time-Varying Channels
Wissal Benzine, Ali Bemani, Nassar Ksairi +1
This paper addresses compressed sensing of linear time-varying (LTV) wireless propagation links under the assumption of double sparsity i.e., sparsity in both the delay and Doppler…