نتایج جستجو برای: wireless networks lorawan

تعداد نتایج: 479341  

Journal: :Journal of University of Babylon 2023

This scientific article aims to propose an established infrastructure of a LoRaWAN technology network in the city Mosul as initial starting point for this pioneering field wireless communication and IoT technologies then suggests advertising proposed model all cities Iraq national project aimed at developing capabilities communications based on what is known Low Power Wide Area Networks (LPWA)....

Detecting anomalies is an important challenge for intrusion detection and fault diagnosis in wireless sensor networks (WSNs). To address the problem of outlier detection in wireless sensor networks, in this paper we present a PCA-based centralized approach and a DPCA-based distributed energy-efficient approach for detecting outliers in sensed data in a WSN. The outliers in sensed data can be ca...

Journal: :journal of ai and data mining 2015
a. ghaffari s. nobahary

wireless sensor networks (wsns) consist of a large number of sensor nodes which are capable of sensing different environmental phenomena and sending the collected data to the base station or sink. since sensor nodes are made of cheap components and are deployed in remote and uncontrolled environments, they are prone to failure; thus, maintaining a network with its proper functions even when und...

Journal: :international journal of communications and information technology 2011
o. adaobi m. ghassemian

wireless sensor networks (wsns) arebecoming increasingly popular, and very useful in militaryapplications and environmental monitoring. however,security is a major challenge for wsns because they areusually setup in unprotected environments. our goal in thisstudy is to simulate an intrusion detection system (ids)that monitors the wsn and report intrusions accurately andeffectively. we have thus...

Journal: : 2023

The subject of this study is methods, tools and automated resource management systems for the housing communal sector. object research process controlling consumption at facilities. aim to develop an system utility sector based on wireless sensor networks. To achieve goal, following tasks were solved: a review analysis existing systems; selection components technical requirements taking into ac...

Journal: :Electronics 2021

Recent market studies show that the for remote monitoring devices of different medical parameters will grow exponentially. Globally, more than 4 million individuals be monitored remotely from perspective health by 2023. Of particular importance is way transmission information acquired sensors. At this time, there are several methods such as Bluetooth, WI-FI, or other wireless communication inte...

Journal: :journal of advances in computer research 2014
reza mohammadi seyyed yahya nabavi reza javidan

underwater acoustic wireless sensor network (uawsn) use acoustic signalsto transmit data. acoustic signals in underwater environment have high bit errorrate, long propagation delay and limited bandwidth. another constraint in uwasnis energy. due to these constraints, design of energy and bandwidth efficient andpropagation delay aware mac protocol is a great challenge in uwasn.underwater sensor ...

P Panahi

Ad hoc networks are multi-hop wireless networks without a pre-installed infrastructure. Such networks are widely used in military applications and in emergency situations as they permit the establishment of a communication network at very short notice with a very low cost. Video is very sensitive for packet loss and wireless ad-hoc networks are error prone due to node mobility and weak links. H...

Journal: :journal of advances in computer research 2013
abbas arghavani abdorasoul ghasemi

cooperation is the foundation of many protocols in wireless networks. without cooperation, the performance of a network significantly decreases. hence, all nodes in traditional networks are required to cooperate with each other. in this paper, instead of traditional networks, a network of rational and autonomous nodes is considered, which means that each node itself can decide whether to cooper...

Journal: :journal of sciences, islamic republic of iran 2010
p panahi

ad hoc networks are multi-hop wireless networks without a pre-installed infrastructure. such networks are widely used in military applications and in emergency situations as they permit the establishment of a communication network at very short notice with a very low cost. video is very sensitive for packet loss and wireless ad-hoc networks are error prone due to node mobility and weak links. h...

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