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cs.IT2024
Pre-Chirp-Domain Index Modulation for Affine Frequency Division Multiplexing
Guangyao Liu, Tianqi Mao, Ruiqi Liu +1
Affine frequency division multiplexing (AFDM), tailored as a novel multicarrier technique utilizing chirp signals for high-mobility communications, exhibits marked advantages compa…
cs.IT2024
Near-Space Communications: the Last Piece of 6G Space-Air-Ground-Sea Integrated Network Puzzle
Hongshan Liu, Tong Qin, Zhen Gao +16
This article presents a comprehensive study on the emerging near-space communications (NS-COM) within the context of space-air-ground-sea integrated network (SAGSIN). Specifically,…