Results 41 to 50 of about 29,070 (155)

A Lightweight, Secure and Reliable Geographic Routing Protocol for Urban VANETs

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper proposes a Lightweight Secure and Reliable Geographic Routing (LSRGR) protocol. The protocol operates in two phases: (i) a greedy forwarding strategy with location verification, which leverages key urban routing parameters to select the most reliable forwarder and employs a recovery mechanism against routing failures, and (ii) reliable route
Ahmed N. Hassan, Mohammad Aljaidi, Yue Cao, Omprakash Kaiwartya   +3 more
wiley   +1 more source

Stability of Queueing Systems with Impatience, Balking and Non-Persistence of Customers

Mathematics
The operation of many queueing systems is adequately described by the structured multidimensional continuous-time Markov chains. The most well-studied classes of such chains are level-independent Quasi-Birth-and-Death processes, GI/M/1 type and M/G/1 ...
Alexander N. Dudin, Sergey A. Dudin, Valentina I. Klimenok, Olga S. Dudina   +3 more
doaj   +1 more source

State – Dependent retrial queues [PDF]

, 2015
Classical retrial queues are characterized by the following feature: a call arriving when all servers are busy leaves the service area but after some random time repeats his demand. This feature plays a special role in many applications. A Markov retrial
Lebedev, Eugene
core  

BB84 Quantum Key Distribution in Software‐Defined Networking Control Planes: End‐to‐End Integration, Security Analysis, and Performance Benchmarking

IET Quantum Communication, Volume 7, Issue 1, January/December 2026.
The system is implemented using Ryu, Open vSwitch, and a software BB84 simulator in a Mininet testbed with up to 20 OpenFlow switches. All measurements are repeated over 30 independent trials with full statistical reporting, while QBER stability is assessed over 1000 runs.
Raied Ibrahim, Ibrahim Khider, Salaheldin Edam, Ahmed Abdalgader, Mohamed Burai   +4 more
wiley   +1 more source

An Energy‐Conscious, Regulation‐Ready and Formally Verified Security Protocol for Low‐Power Medical and Safety Devices

IET Smart Cities, Volume 8, Issue 1, January/December 2026.
This paper presents an energy‐conscious, formally verified security protocol for low‐power medical and safety IoT devices operating in regulated environments. The protocol combines lightweight cryptography with formal verification and is validated through simulation and real‐world deployment across heterogeneous platforms.
Sidra Anwar, Mouaz Hendi, Jonathan Anderson   +2 more
wiley   +1 more source

Energy‐Aware Fuzzy Logic Approach for Optimising Relay MAC Protocols in WBANs for e‐Healthcare Systems

Advances in Fuzzy Systems, Volume 2026, Issue 1, 2026.
Wireless body area networks (WBANs) play a vital role in saving lives by accurately measuring physiological information in a cost‐effective manner. However, reliability and energy consumption remain major constraints in WBANs. Many researchers have claimed that transmission through relay nodes can mitigate these constraints.
Aishwarya Nayak, Tusharkanta Samal, Ambarish Panda, Shikha Binwal   +3 more
wiley   +1 more source

Heterogeneous Finite-Source Retrial Queues [PDF]

Journal of Mathematical Sciences, 2004
The paper considers a system with \(K\) different sources of primary calls, each consisting of a single request. When source \(i\) is free at time \(t\) (i.e., is not being served and not waiting for serving), it may generate a primary call during interval \((t,t + dt)\) with probability \(\lambda _i dt + o(dt)\).
Almási, B., Bolch, G., Sztrik, J.
openaire   +1 more source

Approximate analysis of non-stationary loss queues and networks of loss queues with general service time distributions [PDF]

, 2011
A Fixed Point Approximation (FPA) method has recently been suggested for non-stationary analysis of loss queues and networks of loss queues with Exponential service times.
Worthington, D. J., N. Izady, D. Worthington, Izady, N., Izady, N, Izady, Navid, Worthington, Dave, Worthington, D J   +7 more
core   +1 more source

Employing the Inverse Weibull Failure Time Model to Estimate Some of the Reliability Metrics of k‐Out‐of‐n Systems

Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.
This paper presents a new approach to determine the mean time to system failure (MTSF) and reliability function of k‐out‐of‐n systems with independent and identically distributed components following the inverse Weibull (IW) distribution. The system remains operational when at least k of its n components function properly.
Fatimah Saad Hameed, Hussein K. Asker, Lei Su   +2 more
wiley   +1 more source

Construction and Optimization of a Cost Function in a Single‐Server Multiphase Queueing System With Hypoexponential‐k Customer Service Time

Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.
In this paper, a new generalized cost function construction for a single‐server multiphase queueing system with a Poisson input stream, hypoexponential‐k customer service time, and FIFO discipline is presented. A proposed relationship between service parameters in k phases is based on a geometric progression with rate α, 0 < α < 1.
Stefan Mirchevski, Aleksandra Popovska-Mitrovikj, Verica Bakeva, Arpan Hazra   +3 more
wiley   +1 more source