8 papers
SCMA Inspired Sparse Vector Coding: An Enhanced URLLC Transmission Scheme
Zhen-Ming Huang, Zilong Liu, Leila Musavian +1
Sparsity is inherently exploited in sparse code multiple access (SCMA) and sparse vector coding (SVC), yet the interaction between these two has not been explored before. It is int…
Robust SCMA Codebook Design: A Hardware-Aware Autoencoder Approach
Zihao Liu, Zilong Liu, Leila Musavian
Sparse code multiple access (SCMA) is a promising code-domain non-orthogonal multiple access scheme which is transmitted over orthogonal frequency division multiplexing (OFDM) to e…
Amplitude-Tunable Pinching Antenna Systems: Single-Mode Phase-Mismatch Radiation and Multiuser Beamforming
Askin Altinoklu, Leila Musavian
Pinching antenna systems (PASS) enable reconfigurable radiating elements and extended line-of-sight communication, mitigating path loss effects. However, existing designs lack full…
OTFS-based Integrated Positioning and Communication Systems with Low-Resolution ADCs
Yueyi Yang, Zeping Sui, Zilong Liu +1
This paper proposes a two-phase orthogonal time frequency space (OTFS)-based integrated positioning and communication (IPAC) framework under realistic low-resolution analog-to-digi…
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…
Non-Orthogonal Affine Frequency Division Multiplexing for Spectrally Efficient High-Mobility Communications
Qin Yi, Zilong Liu, Leila Musavian +1
This paper proposes a novel non-orthogonal affine frequency division multiplexing (nAFDM) waveform for reliable high-mobility communications with enhanced spectral efficiency (SE).…