16 citations · 38 across the 11 of their papers we have counts for
11 papers
Energy-efficient Integrated Sensing and Communication System and DNLFM Waveform
Yihua Ma, Zhifeng Yuan, Shuqiang Xia +3
Integrated sensing and communication (ISAC) is a key enabler of 6G. Unlike communication radio links, the sensing signal requires to experience round trips from many scatters. Ther…
OTFDM: A Novel 2D Modulation Waveform Modeling Dot-product Doubly-selective Channel
Yihua Ma, Zhifeng Yuan, Yu Xin +4
Recently, a two-dimension (2D) modulation waveform of orthogonal time-frequency-space (OTFS) has been a popular 6G candidate to replace existing orthogonal frequency division multi…
Highly Efficient Waveform Design and Hybrid Duplex for Joint Communication and Sensing
Yihua Ma, Zhifeng Yuan, Shuqiang Xia +2
Joint communication and sensing (JCAS) is a very promising 6G technology, which attracts more and more research attention. Compared with communication, radar has many unique featur…
Waveform Design Using Half-duplex Devices for 6G Joint Communications and Sensing
Yihua Ma, Zhifeng Yuan, Guanghui Yu +2
Joint communications and sensing is a promising 6G technology, and the challenge is how to integrate them efficiently. Existing frequency-division and time-division coexistence can…
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…
LMMSE Processing for Cell-free Massive MIMO with Radio Stripes and MRC Fronthaul
Zhifeng Yuan, Yihua Ma, Guanghui Yu
Cell-free massive MIMO provides ubiquitous connectivity for multiple users, and implementation using radio stripes is very efficient. Compared with collocated massive MIMO, the maj…
Efficient Parallel Schemes for Cell-free Massive MIMO Using Radio Stripes
Yihua Ma, Zhifeng Yuan, Guanghui Yu +1
Cell-free massive MIMO provides ubiquitous connectivity for multiple users, and implementation using radio stripes is very efficient. This paper proposes a parallel scheme for radi…
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…