17 papers · 1 filter
Spatially Correlated multi-RIS Communication: The Effect of Inter-Operator Interference
Nikolaos I. Miridakis, Panagiotis A. Karkazis
A multi-operator wireless communication system is studied where each operator is equipped with a reconfigurable intelligent surface (RIS) to enhance its communication quality. RISs…
Impact of Inter-Operator Interference via Reconfigurable Intelligent Surfaces
Nikolaos I. Miridakis, Theodoros A. Tsiftsis, Panagiotis A. Karkazis +2
A wireless communication system is studied that operates in the presence of multiple reconfigurable intelligent surfaces (RISs). In particular, a multi-operator environment is cons…
Extreme Level Crossing Rate: A New Performance Indicator for URLLC Systems
Nikolaos I. Miridakis, Theodoros A. Tsiftsis, Panagiotis A. Karkazis +2
Level crossing rate (LCR) is a well-known statistical tool that is related to the duration of a random stationary fading process \emph{on average}. In doing so, LCR cannot capture…
Zero Forcing Uplink Detection through Large-Scale RIS: System Performance and Phase Shift Design
Nikolaos I. Miridakis, Theodoros A. Tsiftsis, Rugui Yao
A multiple-input multiple-output wireless communication system is analytically studied, which operates with the aid of a large-scale reconfigurable intelligent surface (LRIS). LRIS…
Outage Performance of Cross-Packet HARQ
Jiahui Feng, Zheng Shi, Guanghua Yang +3
As opposed to hybrid automatic repeat request with incremental redundancy (HARQ-IR) that all the resources are occupied to resend the redundant information, cross-packet HARQ (XP-H…
Extreme Age of Information for Wireless-Powered Communication Systems
Nikolaos I. Miridakis, Zheng Shi, Theodoros A. Tsiftsis +1
The extreme or maximum age of information (AoI) is analytically studied for wireless communication systems. In particular, a wireless powered single-antenna source node and a recei…