69 citations · 172 across the 16 of their papers we have counts for
15 papers · 1 filter
Coverage Analysis of Relay Assisted Millimeter Wave Cellular Networks with Spatial Correlation
Simin Xu, Nan Yang, Biao He +1
We propose a novel analytical framework for evaluating the coverage performance of a millimeter wave (mmWave) cellular network where idle user equipments (UEs) act as relays. In th…
Low-Complexity Reconfigurable MIMO for Millimeter Wave Communications
Biao He, Hamid Jafarkhani
The performance of millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems is limited by the sparse nature of propagation channels and the restricted number of radio…
An Analysis of Two-User Uplink Asynchronous Non-Orthogonal Multiple Access Systems
Xun Zou, Biao He, Hamid Jafarkhani
Recent studies have numerically demonstrated the possible advantages of the asynchronous non-orthogonal multiple access (ANOMA) over the conventional synchronous non-orthogonal mul…
Millimeter Wave Communications with Reconfigurable Antennas
Biao He, Hamid Jafarkhani
The highly sparse nature of propagation channels and the restricted use of radio frequency (RF) chains at transceivers limit the performance of millimeter wave (mmWave) multiple-in…
Covert Wireless Communication with a Poisson Field of Interferers
Biao He, Shihao Yan, Xiangyun Zhou +1
In this paper, we study covert communication in wireless networks consisting of a transmitter, Alice, an intended receiver, Bob, a warden, Willie, and a Poisson field of interferer…
Interference Alignment with Power Splitting Relays in Multi-User Multi-Relay Networks
Man Chu, Biao He, Xuewen Liao +2
In this paper, we study a multi-user multi-relay interference-channel network, where energy-constrained relays harvest energy from sources' radio frequency (RF) signals and use the…
Artificial Noise Injection for Securing Single-Antenna Systems
Biao He, Yechao She, Vincent K. N. Lau
We propose a novel artificial noise (AN) injection scheme for wireless systems over quasi-static fading channels, in which a single-antenna transmitter sends confidential messages…
Covert Communication with Finite Blocklength in AWGN Channels
Shihao Yan, Biao He, Yirui Cong +1
Covert communication is to achieve a reliable transmission from a transmitter to a receiver while guaranteeing an arbitrarily small probability of this transmission being detected…
On Covert Communication with Noise Uncertainty
Biao He, Shihao Yan, Xiangyun Zhou +1
Prior studies on covert communication with noise uncertainty adopted a worst-case approach from the warden's perspective. That is, the worst-case detection performance of the warde…
On the Design of Secure Non-Orthogonal Multiple Access Systems
Biao He, An Liu, Nan Yang +1
This paper proposes a new design of non-orthogonal multiple access (NOMA) under secrecy considerations. We focus on a NOMA system where a transmitter sends confidential messages to…
Artificial-Noise-Aided Secure Transmission in Wiretap Channels with Transmitter-Side Correlation
Shihao Yan, Xiangyun Zhou, Nan Yang +2
This work for the first time examines the impact of transmitter-side correlation on the artificial-noise-aided secure transmission, based on which a new power allocation strategy f…
On Secrecy Metrics for Physical Layer Security over Quasi-Static Fading Channels
Biao He, Xiangyun Zhou, A. Lee Swindlehurst
Theoretical studies on physical layer security often adopt the secrecy outage probability as the performance metric for wireless communications over quasi-static fading channels. T…
Achieving secrecy without knowing the number of eavesdropper antennas
Biao He, Xiangyun Zhou, Thushara D. Abhayapala
The existing research on physical layer security commonly assumes the number of eavesdropper antennas to be known. Although this assumption allows one to easily compute the achieva…
Wireless Physical Layer Security with Imperfect Channel State Information: A Survey
Biao He, Xiangyun Zhou, Thushara D. Abhayapala
Physical layer security is an emerging technique to improve the wireless communication security, which is widely regarded as a complement to cryptographic technologies. To design p…
Secure On-Off Transmission Design with Channel Estimation Errors
Biao He, Xiangyun Zhou
Physical layer security has recently been regarded as an emerging technique to complement and improve the communication security in future wireless networks. The current research a…