5 papers
MIMO-AFDM Outperforms MIMO-OFDM in the Face of Hardware Impairments
Zeping Sui, Zilong Liu, Leila Musavian +3
The impact of both multiplicative and additive hardware impairments (HWIs) on multiple-input multiple-output affine frequency division multiplexing (MIMO-AFDM) systems is investiga…
Space-Air-Ground-Integrated Networks: The BER vs. Residual Delay and Doppler Analysis
Chao Zhang, Kunlun Li, Chao Xu +2
Perfect Doppler compensation and synchronization is nontrivial due to multi-path Doppler effects and Einstein's theory of relativity in the space-air-ground-integrated networks (SA…
Generalized Spatial Modulation Aided Affine Frequency Division Multiplexing
Zeping Sui, Zilong Liu, Leila Musavian +2
Generalized spatial modulation-aided affine frequency division multiplexing (GSM-AFDM) is conceived for reliable multiple-input multiple-output (MIMO) communications over doubly se…
CDMA/OTFS Sensing Outperforms Pure OTFS at the Same Communication Throughput
Hugo Hawkins, Chao Xu, Lie-Liang Yang +1
There is a dearth of publications on the subject of spreading-aided Orthogonal Time Frequency Space (OTFS) solutions, especially for Integrated Sensing and Communication (ISAC), ev…
Space-Air-Ground Integrated Networks: Their Channel Model and Performance Analysis
Chao Zhang, Qingchao Li, Chao Xu +2
Given their extensive geographic coverage, low Earth orbit (LEO) satellites are envisioned to find their way into next-generation (6G) wireless communications. This paper explores…