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eess.SP2026
A Majorization-Minimization Framework for Activity Detection in Mixed Near-and-Far-Field Random Access
Xinjue Wang, Zhi-Yong Wang, Sergiy A. Vorobyov +3
Grant-free random access in massive machine-type communications requires detecting a small active set from length-L uplink pilots received at an M-antenna base station. Classical c…
cs.IT2026
Gamma-Distributed Geometric Constellation for ISAC: Design and Analysis
Amirhossein Keshavarzchafjiri, Janith K. Dassanayake, Gayan A. Aruma Baduge +1
A novel Gamma-distributed geometric constellation design framework for integrated sensing and communication (ISAC) is proposed in this paper. In this framework, constellation point…
cs.IT2026
End-to-End NOMA with Perfect and Quantized CSI Over Rayleigh Fading Channels
Selma Benouadah, Mojtaba Vaezi, Ruizhan Shen +1
An end-to-end autoencoder (AE) framework is developed for downlink non-orthogonal multiple access (NOMA) over Rayleigh fading channels, which learns interference-aware and channel-…