scholarly journals Views of wireless network systems.

2003 ◽  
Author(s):  
William Frederick Young ◽  
David Patrick Duggan
Keyword(s):  
Wireless Network ◽  
Network Systems

scholarly journals On the Connectivity of Wireless Network Systems and an Application in Teacher-Student Interactive Platforms

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Xun Ge
Keyword(s):  
Wireless Network ◽  
Rough Set Theory ◽  
Base Stations ◽  
Network System ◽  
Mathematical Methods ◽  
Network Systems ◽  
Approximation Spaces ◽  
Research Education ◽  
Teacher Student ◽  
Mathematical Sciences

A wireless network system is a pair(U;B), whereBis a family of some base stations andUis a set of their users. To investigate the connectivity of wireless network systems, this paper takes covering approximation spaces as mathematical models of wireless network systems. With the help of covering approximation operators, this paper characterizes the connectivity of covering approximation spaces by their definable subsets. Furthermore, it is obtained that a wireless network system is connected if and only if the relevant covering approximation space has no nonempty definable proper subset. As an application of this result, the connectivity of a teacher-student interactive platform is discussed, which is established in the School of Mathematical Sciences of Soochow University. This application further demonstrates the usefulness of rough set theory in pedagogy and makes it possible to research education by logical methods and mathematical methods.

scholarly journals An Improvement in Stability of MANET using Flow Admission Control Algorithm

2011 ◽  
pp. 142-149
Author(s):  
Mohit Ranjan Panda ◽  
Manas Ranjan Mishra
Keyword(s):  
Wireless Network ◽  
Admission Control ◽  
Ad Hoc ◽  
Routing Algorithm ◽  
Throughput Capacity ◽  
Time Data ◽  
Network Systems ◽  
Ad Hoc Wireless Network ◽  
Mobile Ad Hoc ◽  
Stable Throughput

An ad hoc network is a collection of wireless mobile hosts forming a temporary network without the aid of any centralized administration or standard support services. However flows transported across mobile ad hoc wireless networks suffer from route breakups caused by nodal mobility. In a network that aims to support critical interactive real-time data transactions, to provide for the uninterrupted execution of a transaction, or for the rapid transport of a high value file, it is essential to identify stable routes across which such transactions are transported. Noting that route failures can induce long re-routing delays that may be highly interruptive for many applications and message/stream transactions, it is beneficial to configure the routing scheme to send a flow across a route whose lifetime is longer, with sufficiently high probability, than the estimated duration of the activity that it is selected to carry. We evaluate the ability of a mobile ad hoc wireless network to distribute flows across routes which is sufficiently stable for successful transmission. As a special case, for certain applications only transactions that are completed without being prematurely interrupted may convey data to their intended users that is of acceptable utility. We describe the mathematical calculation of a network’s stable throughput measure, as well as its stable throughput capacity. We proposed the stable throughput and flow admission control routing algorithm (SFAR) to provide for the timely and stable transport of flow transactions across mobile ad hoc wireless network systems.

New Bandwidth Upgradation and Degradation Algorithms for Next Generation of Wireless Network Systems

2020 ◽  
Vol 113 (1) ◽  
pp. 79-97
Author(s):  
Hekma Chaari ◽  
Kais Mnif ◽  
Faouzi Zarai ◽  
Lotfi Kamoun
Keyword(s):  
Wireless Network ◽  
Next Generation ◽  
Network Systems

scholarly journals A New Covid-19 Tracing Approach using Machine Learning and Drones Enabled Wireless Network

2021 ◽  
Vol 15 (22) ◽  
pp. 111
Author(s):  
Ayoub Alsarhan ◽  
Islam Almalkawi ◽  
Yousef Kilani
Keyword(s):  
Wireless Network ◽  
Communication Technologies ◽  
Base Stations ◽  
Network Systems ◽  
Wireless System ◽  
Wireless Monitoring ◽  
Iot Devices ◽  
Cloud Servers ◽  
Exchange Data

<p class="0abstract">The continuous advancements in wireless network systems have reshaped the healthcare systems towards using emerging communication technologies at different levels. This paper makes two major contributions. Firstly, a new monitoring and tracking wireless system is developed to handle the COVID-19 spread problem. Unmanned aerial vehicles (UAVs), i.e., drones, are used as base stations as well as data collection points from Internet of Things (IoT) devices on the ground. These UAVs are also able to exchange data with other UAVs and cloud servers. Secondly, this paper introduces a new reinforcement learning (RL) framework for learning the optimal signal-aware UAV trajectories under quality of service constraints. The proposed RL algorithm is instrumental in making the UAV movement decisions that maximize the signal power at the receiver and the data collected from the ground agents. Simulation experiments confirm that the system overcomes conventional wireless monitoring systems and demonstrates efficiency especially in terms of flexible continues connectivity, line-of sight visibility, and collision avoidance.</p>

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