6 papers
MCRB and MSE Analysis for Parameter Estimation in AFDM-ISAC Systems
Tianyao Ma, Aimin Tang, Yin Xu +3
Affine frequency division multiplexing (AFDM) is a promising waveform for integrated sensing and communication (ISAC). In AFDM systems, the complex gains, delays, and Doppler shift…
Towards Standardizing Affine Frequency Division Multiplexing (AFDM) for Future Wireless Networks
Qu Luo, Lixia Xiao, Pei Xiao +6
Affine frequency division multiplexing~(AFDM) has emerged as a compelling waveform candidate for future wireless networks, owing to its strong resilience to doubly selective channe…
Enhancing Signal Space Diversity for SCMA Over Rayleigh Fading Channels
Qu Luo, Zilong Liu, Gaojie Chen +1
Sparse code multiple access (SCMA) is a promising technique for the enabling of massive connectivity in future machine-type communication networks, but it suffers from a limited di…
A Design of Low-Projection SCMA Codebooks for Ultra-Low Decoding Complexity in Downlink IoT Networks
Qu Luo, Zilong Liu, Gaojie Chen +3
This paper conceives a novel sparse code multiple access (SCMA) codebook design which is motivated by the strong need for providing ultra-low decoding complexity and good error per…
A Novel Multi-Task Learning Empowered Codebook Design for Downlink SCMA Networks
Qu Luo, Zilong Liu, Gaojie Chen +2
Sparse code multiple access (SCMA) is a promising code-domain non-orthogonal multiple access (NOMA) scheme for the enabling of massive machine-type communication. In SCMA, the desi…
Designing Enhanced Multi-dimensional Constellations for Code-Domain NOMA
Haifeng Wen, Zilong Liu, Qu Luo +2
This paper presents an enhanced design of multi-dimensional (MD) constellations which play a pivotal role in many communication systems such as code-domain non-orthogonal multiple…