Review of reliability assessment methods of drone swarm (fleet) and a new importance evaluation based method of drone swarm structure analysis

E Zaitseva, V Levashenko, R Mukhamediev, N Brinzei… - Mathematics, 2023 - mdpi.com
Drones, or UAVs, are developed very intensively. There are many effective applications of
drones for problems of monitoring, searching, detection, communication, delivery, and …

Joint optimization of mission abort and system structure considering dynamic tasks

X Zhao, H Liu, Y Wu, Q Qiu - Reliability Engineering & System Safety, 2023 - Elsevier
Mission abort has recently attracted considerable attention to enhance the safety of critical
systems during the primary mission (PM). Most of the existing research focuses on mission …

Mission abort policy in heterogeneous nonrepairable 1-out-of-N warm standby systems

G Levitin, L **ng, Y Dai - IEEE Transactions on Reliability, 2017 - ieeexplore.ieee.org
Many real-world critical systems, such as aircraft and human space flight systems, utilize
mission aborts to enhance the survivability of the system. Specifically, the mission objectives …

[HTML][HTML] Redundancy allocation problem in repairable k-out-of-n systems with cold, warm, and hot standby: A genetic algorithm for availability optimization

M Oszczypała, J Ziółkowski, J Małachowski - Applied Soft Computing, 2024 - Elsevier
In this paper, a single-objective redundancy allocation problem (RAP) is considered for a
series system with k-out-of-n subsystems. In each subsystem, the components are binary …

Optimizing partial component activation policy in multi-attempt missions

G Levitin, L **ng, Y Dai - Reliability Engineering & System Safety, 2023 - Elsevier
Active redundancy is an effective technique for improving the mission success probability.
However, more components simultaneously performing the mission implies higher cost and …

Co-optimization of state dependent loading and mission abort policy in heterogeneous warm standby systems

G Levitin, L **ng, Y Dai - Reliability Engineering & System Safety, 2018 - Elsevier
This paper models and optimizes a 1-out-of-N: G heterogeneous warm standby system
subject to state-dependent component loading and mission abort policies. For …

Optimal tasks assignment policy in multi-task multi-attempt missions

G Levitin, L **ng, Y Dai - Reliability Engineering & System Safety, 2024 - Elsevier
Motivated by real-world applications like unmanned reconnaissance aerial vehicles, this
paper considers a multi-task multi-attempt mission system, where each task may be …

Co-residence based data vulnerability vs. security in cloud computing system with random server assignment

G Levitin, L **ng, Y Dai - European Journal of Operational Research, 2018 - Elsevier
The virtualization technology, particularly virtual machines (VMs) used in cloud computing
systems have raised unique security and survivability risks for cloud users. This paper …

Optimal sequencing of warm standby elements

G Levitin, L **ng, Y Dai - Computers & Industrial Engineering, 2013 - Elsevier
Warm standby redundancy has been used as an effective design technique for improving
the reliability of a system while achieving the compromise between restoration cost and …

Multi-Valued Decision Diagram-Based Reliability Analysis of -out-of- Cold Standby Systems Subject to Scheduled Backups

Q Zhai, L **ng, R Peng, J Yang - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
To improve the system reliability while conserving the limited system resources, cold
standby sparing is often used. In computing tasks, because active components fail randomly …