5 citations · 10 across the 5 of their papers we have counts for
5 papers
Contention-based Grant-free Transmission with Extremely Sparse Orthogonal Pilot Scheme
Zhifeng Yuan, Zhigang Li, Weimin Li +1
Due to the limited number of traditional orthogonal pilots, pilot collision will severely degrade the performance of contention-based grant-free transmission. To alleviate the pilo…
PDRS: A Fast Non-iterative Scheme for Massive Grant-free Access in Massive MIMO
Yihua Ma, Zhifeng Yuan, Weimin Li +1
Grant-free multiple-input multiple-output (MIMO) usually employs non-orthogonal pilots for joint user detection and channel estimation. However, existing methods are too complex fo…
Contention-based Grant-free Transmission with Independent Multi-pilot Scheme
Zhifeng Yuan, Weimin Li, Zhigang Li +2
Contention-based grant-free transmission is very promising for future massive machine-type communication (mMTC). In contention-based transmission, the random pilot collision is a c…
Blind Receive Beamforming for Autonomous Grant-Free High-Overloading Multiple Access
Zhifeng Yuan, Weimin Li, Yuzhou Hu +3
Massive number of internet of things (IoT) devices are expected to simultaneously connect to the mMTC and beyond future generations of wireless network, posing severe challenge to…
Blind Multi-user Detection for Autonomous Grant-free High-Overloading MA without Reference Signal
Zhifeng Yuan, Yuzhou Hu, Weimin Li +1
In this paper, a novel blind multi-user detection(MUD) framework for autonomous grant-free high-overloading non-orthogonal multiple access is introduced in detail aimed at fulfilli…