4 papers indexed
Qu Luo, Zilong Liu, Musavian Leila, Thomos Nikolaos, Qihao Peng, Pei Xiao
This paper proposes an Affine frequency division multiplexing (AFDM)-empowered integrated sensing and communications (ISAC) design, referred to as AFDM-ISAC. We first design a novel AFDM-ISAC frame structure that consists of both ISAC and pure data symbols. Each ISAC symbol consi…
Yiming Gui, Zilong Liu, Qu Luo, Pei Xiao
This paper presents a spatially coupled sparse code multiple access (SC-SCMA) framework to overcome the performance and scalability limitations of conventional SCMA systems. By analyzing the pairwise error probability associated to multi-user error patterns, we show that spatial…
Zilong Liu, Xuewen Zhang, Jinrui Xing, Juyi Qiao, Huiyong Wang, Junming Jiao
Knowledge distillation (KD) is a key technique for compressing Large Language Models (LLMs), yet methods relying on a single KL objective often fail to balance primary distribution fitting with long-tail probability modeling, limiting both generation quality and generalization. T…
Wenbo Fan, Pingzhi Fan, Zilong Liu
This paper presents a novel priority random access (PRA) non-orthogonal multiple access assisted ALOHA, called PRA-NA, to provide access priority for machine-type devices (MTDs) with different delay requirements (i.e., delay-sensitive and delay-tolerant). We first introduce a rec…