432 citations · 1.1k across the 32 of their papers we have counts for
6 papers · 1 filter
Error Rate and Ergodic Capacity of RF-FSO System with Partial Relay Selection in the Presence of Pointing Errors
Milica I. Petkovic, Imran Shafique Ansari, Goran T. Djordjevic +1
This paper presents an analysis of a multiple dual-hop relaying system, which is composed of km-class radio frequency (RF)-free-space optical (FSO) links. Partial relay selection b…
On the Integral and Derivative Identities of Bivariate Fox H-Function: Application in Wireless System Performance Analysis
Puspraj Singh Chauhan, Sandeep Kumar, Imran Shafique Ansari
The present work proposes analytical solutions for the integral of bivariate Fox H-function in combination with algebraic, exponential, and complementary error functions. In additi…
On Secure NOMA-CDRT Systems with Physical Layer Network Coding
Hongjiang Lei, Xusheng She, Ki-Hong Park +4
This paper proposes a new scheme to enhance the secrecy performance of a NOMA-based coordinated direct relay transmission system (NOMA-CDRT) with an untrusted relay. The physical-l…
Outage Analysis of Aerial Semi-Grant-Free NOMA Systems
Hongjiang Lei, Chen Zhu, Ki-Hong Park +4
In this paper, we analyze the outage performance of unmanned aerial vehicles (UAVs)-enabled downlink non-orthogonal multiple access (NOMA) communication systems with the semi-grant…
Joint Trajectory Design and User Scheduling of Aerial Cognitive Radio Networks
Hongjiang Lei, Haosi Yang, Ki-Hong Park +3
Unmanned aerial vehicles (UAVs) have been widely employed to enhance the end-to-end performance of wireless communications since the links between UAVs and terrestrial nodes are li…
On Secure NOMA-Aided Semi-Grant-Free Systems
Hongjiang Lei, Fangtao Yang, Hongwu Liu +3
Semi-grant-free (SGF) transmission scheme enables grant-free (GF) users to utilize resource blocks allocated for grant-based (GB) users while maintaining the quality of service of…