7 citations · 9 across the 4 of their papers we have counts for
4 papers
Fundamental Tradeoffs in Uplink Grant-Free Multiple Access with Protected CSI
Dongyang Xu, Pinyi Ren, Yichen Wang +1
In the envisioned 5G, uplink grant-free multiple access will become the enabler of ultra-reliable low-latency communications (URLLC) services. By removing the forward scheduling re…
Code-Frequency Block Group Coding for Anti-Spoofing Pilot Authentication in Multi-Antenna OFDM Systems
Dongyang Xu, Pinyi Ren, James A. Ritcey +1
A pilot spoofer can paralyze the channel estimation in multi-user orthogonal frequency-division multiplexing (OFD- M) systems by using the same publicly-known pilot tones as legiti…
Optimal Relay Power Allocation for Amplify-and-Forward Relay Networks with Non-linear Power Amplifiers
Chao Zhang, Pinyi Ren, Jingbo Peng +3
In this paper, we propose an optimal relay power allocation of an Amplify-and-Forward relay networks with non-linear power amplifiers. Based on Bussgang Linearization Theory, we de…
A Multi-Channel Diversity Based MAC Protocol for Power-Constrained Cognitive Ad Hoc Networks
Yichen Wang, Pinyi Ren, Qinghe Du +1
One of the major challenges in the medium access control (MAC) protocol design over cognitive Ad Hoc networks (CAHNs) is how to efficiently utilize multiple opportunistic channels,…