23 citations · 50 across the 8 of their papers we have counts for
8 papers
Ergodic Secrecy Rate of RIS-Assisted Communication Systems in the Presence of Discrete Phase Shifts and Multiple Eavesdroppers
Peng Xu, Gaojie Chen, Gaofeng Pan +1
This letter investigates the ergodic secrecy rate (ESR) of a reconfigurable intelligent surface (RIS)-assisted communication system in the presence of discrete phase shifts and mul…
Reconfigurable Intelligent Surfaces Assisted Communications with Discrete Phase Shifts: How Many Quantization Levels are Required to Achieve Full Diversity?
Peng Xu, Gaojie Chen, Zheng Yang +1
Due to hardware limitations, the phase shifts of the reflecting elements of reconfigurable intelligent surfaces (RISs) need to be quantized into discrete values. This letter aims t…
Optimal Power Allocation Scheme for Non-Orthogonal Multiple Access with -Fairness
Peng Xu, Kanapathippillai Cumanan
This paper investigates the optimal power allocation scheme for sum throughput maximization of non-orthogonal multiple access (NOMA) system with -fairness. In contrast to the ex…
Physical Layer Security Jamming: Theoretical Limits and Practical Designs in Wireless Networks
Kanapathippillai Cumanan, Hong Xing, Peng Xu +5
Physical layer security has been recently recognized as a promising new design paradigm to provide security in wireless networks. In addition to the existing conventional cryptogra…
On the Outage Performance of Non-Orthogonal Multiple Access with One-Bit Feedback
Peng Xu, Yi Yuan, Zhiguo Ding +2
In this paper, the outage performance of downlink non-orthogonal multiple access (NOMA) is investigated for the case where each user feeds back only one bit of its channel state in…
NOMA: An Information Theoretic Perspective
Peng Xu, Zhiguo Ding, Xuchu Dai +1
In this letter, the performance of non-orthogonal multiple access (NOMA) is investigated from an information theoretic perspective. The relationships among the capacity region of b…
The Private Key Capacity of a Cooperative Pairwise-Independent Network
Peng Xu, Zhiguo Ding, Xuchu Dai
This paper studies the private key generation of a cooperative pairwise-independent network (PIN) with M+2 terminals (Alice, Bob and M relays), M >= 2. In this PIN, the correlated…
On the Application of Noisy Network Coding to the Relay-Eavesdropper Channel
Peng Xu, Zhiguo Ding, and Xuchu Dai +1
In this paper, we consider the design of a new secrecy transmission scheme for a four-node relay-eavesdropper channel. The key idea of the proposed scheme is to combine noisy netwo…