164 citations · 196 across the 11 of their papers we have counts for
7 papers · 1 filter
Networked Collaborative Sensing using Multi-domain Measurements: Architectures, Performance Limits and Algorithms
Yihua Ma, Shuqiang Xia, Chen bai +3
As a promising 6G technology, integrated sensing and communication (ISAC) gains growing interest. ISAC provides integration gain via sharing spectrum, hardware, and software. Howev…
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…