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- Chinese Academy of SciencesCN136 papers
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76 papers · 1 filter
Low-Complex Channel Estimation in Extra-Large Scale MIMO with the Spherical Wave Properties
Xumin Pu, Zhinan Sun, Qianbin Chen +1
This paper investigates the low-complex linear minimum mean squared error (LMMSE) channel estimation in an extra-large scale MIMO system with the spherical wave model (SWM). We mod…
Secure Degree of Freedom of Wireless Networks Using Collaborative Pilots
Yingbo Hua, Qingpeng Liang, Md Saydur Rahman
A wireless network of full-duplex nodes/users, using anti-eavesdropping channel estimation (ANECE) based on collaborative pilots, can yield a positive secure degree-of-freedom (SDo…
Low-complexity Resource Allocation for Uplink RSMA in Future 6G Wireless Networks
Jiewen Hu, Gang Liu, Zheng Ma +2
Uplink rate-splitting multiple access (RSMA) requires optimization of decoding order and power allocation, while decoding order is a discrete variable, and it is very complex to fi…
PMDS Array Codes With Small Sub-packetization, Small Repair Bandwidth/Rebuilding Access
Jie Li, Xiaohu Tang, Hanxu Hou +3
Partial maximum distance separable (PMDS) codes are a kind of erasure codes where the nodes are divided into multiple groups with each forming an MDS code with a smaller code lengt…
New Delay Doppler Communication Paradigm in 6G era: A Survey of Orthogonal Time Frequency Space (OTFS)
Weijie Yuan, Shuangyang Li, Zhiqiang Wei +4
In the 6G era, space-air-Ground integrated networks (SAGIN) are anticipated to deliver global coverage, necessitating support for a diverse array of emerging applications in high-m…
Beam Management in Ultra-dense mmWave Network via Federated Reinforcement Learning: An Intelligent and Secure Approach
Qing Xue, Yi-Jing Liu, Yao Sun +4
Deploying ultra-dense networks that operate on millimeter wave (mmWave) band is a promising way to address the tremendous growth on mobile data traffic. However, one key challenge…