28 citations · 73 across the 34 of their papers we have counts for
17 papers · 1 filter
Secure Antenna Selection and Beamforming in MIMO Systems
Zhenqiao Cheng, Nanxi Li, Ruizhe Long +3
This work proposes a novel joint design for multiuser multiple-input multiple-output wiretap channels. The base station exploits a switching network to connect a subset of its ante…
Joint Receive Antenna Selection and Beamforming in RIS-Aided MIMO Systems
Chongjun Ouyang, Ali Bereyhi, Saba Asaad +2
This work studies a low-complexity design for reconfigurable intelligent surface (RIS)-aided multiuser multiple-input multiple-output systems. The base station (BS) applies receive…
Statistical-CSI-Based Antenna Selection and Precoding in Uplink MIMO
Chongjun Ouyang, Ali Bereyhi, Saba Asaad +2
Classical antenna selection schemes require instantaneous channel state information (CSI). This leads to high signaling overhead in the system. This work proposes a novel joint rec…
Lens Antenna Arrays-Assisted mmWave MU-MIMO Uplink Transmission: Joint Beam Selection and Phase-Only Beamforming Design
Chongjun Ouyang, Hao Xu, Xujie Zang +1
This paper considers a lens antenna array-assisted millimeter wave (mmWave) multiuser multiple-input multiple-output (MU-MIMO) system. The base station's beam selection matrix and…
Physical Layer Security Over Mixture Gamma Distributed Fading Channels With Discrete Inputs: A Unified and General Analytical Framework
Chongjun Ouyang, Sheng Wu, Chunxiao Jiang +2
Physical layer security is investigated over mixture Gamma (MG) distributed fading channels with discrete inputs. By the Gaussian quadrature rules, closed-form expressions are deri…
Secrecy Performance for Finite-Alphabet Inputs Over Fluctuating Two-Ray Channels in FDA Communications
Chongjun Ouyang, Sheng Wu, Chunxiao Jiang +2
To provide system design insights for practical communication systems equipped with the frequency diverse array (FDA), this paper investigates the secrecy performance of FDA system…
Enabling NB-IoT on Unlicensed Spectrum
Rongrong Sun, Salvatore Talarico, Wenting Chang +2
The deployment of Internet of Things (IoT) technologies in unlicensed spectrum is a candidate feature for 5G to support massive connections of IoT devices. Current IoT unlicensed b…
Secrecy Performance of Antenna-Selection-Aided MIMOME Channels with BPSK/QPSK Modulations
Chongjun Ouyang, Zeliang Ou, Lu Zhang +2
This paper studies the secrecy performance of multiple-input multiple-output (MIMO) wiretap channels, also termed as multiple-input multiple-output multiple-eavesdropper (MIMOME) c…
Ergodic H-S/MRC Mutual Information
Zeliang Ou, Chongjun Ouyang, Pei Yang +3
This paper studies the ergodic mutual information of hybrid selection/maximal-ratio combining (H-S/MRC) diversity system under BPSK/QPSK modulations. We consider a simple single-in…
Ergodic Mutual Information for Generalized Fadings
Chongjun Ouyang, Sheng Wu, Zeliang Ou +4
In this paper, novel expressions are derived to evaluate the ergodic mutual information (EMI) under BPSK modulation of single-input single-output (SISO) systems operating in genera…
Ergodic Secrecy Rate of Antenna-Selection-Aided MIMOME Channels with BPSK/QPSK Modulations
Chongjun Ouyang, Zeliang Ou, Pei Yang +3
This paper analyzes transmit antenna selection (TAS) under Rayleigh flat fading for BPSK/QPSK modulations in multiple-input multiple-output wiretap channels, also termed as multipl…
Performance of Multiple Antennas Selection in SIMO Systems with BPSK/QPSK Modulations
Chongjun Ouyang, Zeliang Ou, Pei Yang +3
This paper studies the performance of single-input multiple-output (SIMO) systems under receive antenna selection (RAS) and BPSK/QPSK modulations. At the receiver, a subset of bran…
Performance Analysis of Receive Antenna Selection in Multi-Antenna Systems under Finite Constellation Size
Chongjun Ouyang, Hongwen Yang
Antenna selection (AS) is regarded as one of the most prospective technologies to reduce hardware cost but keep relatively high spectral efficiency in multi-antenna systems. By sel…
Massive MIMO Antenna Selection: Asymptotic Upper Capacity Bound and Partial CSI
Chongjun Ouyang, Hongwen Yang
Antenna selection (AS) is regarded as the key promising technology to reduce hardware cost but keep relatively high spectral efficiency in multi-antenna systems. By selecting a sub…
Asymptotic Upper Capacity Bound for Receive Antenna Selection in Massive MIMO Systems
Chongjun Ouyang, Zeliang Ou, Lu Zhang +1
This paper studies the receive antenna selection in massive multiple-input multiple-output (MIMO) system. The receiver, equipped with a large-scale antenna array whose size is much…
Optimal Transmit Antenna Selection Algorithm in Massive MIMOME Channels
Chongjun Ouyang, Zeliang Ou, Hongwen Yang
This paper studies the transmit antenna selection in massive multiple-input multiple-output (MIMO) system over wiretap channel. The transmitter, equipped with a large-scale antenna…
Grant-less Uplink Transmission for LTE Operated in Unlicensed Spectrum
Jinyu Zhang, Wenting Chang, Huaning Niu +2
Deployment of Long Term Evolution (LTE) in unlicensed spectrum has been a candidate feature to meet the explosive growth of traffic demand since 3GPP release 13. To further explore…