simultaneous routing and resource allocation has been considered in wireless networks for its performance improvement. in this paper we propose a cross-layer optimization framework for worst-case queue length minimization in some type of fdma based wireless networks, in which the the data routing and the power allocation problem are jointly optimized with fuzzy distributed h∞ control strategy ....

LoRaWAN exhibits several characteristics that can lead to an unfair distribution of the Data Extracted Rate (DER) among nodes. Firstly, the capture effect leads to a strong signal suppressing a weaker signal at the gateway and secondly, the spreading codes used are not perfectly orthogonal, causing packet loss if an interfering signal is strong enough. In these conditions, nodes experiencing hi...

wireless ad hoc networks are composed of independent nodes managing the network without any infrastructure. the connection between nodes is provided by sending packages and by trusting to each other. therefore, using efficient and certain protocols is the essential requirement of these networks. due to special characteristics of wireless ad hoc networks such as lack of a fixed infrastructure, t...

The Internet of Things (IoT) ecosystem emerges rapidly and paves the way towards collecting huge amounts data that can feed innovative information-based systems. connectivity infrastructure will support IoT encompasses deployments define so-called Low-Power Wide Area Networks (LPWANs). LPWANs are an attractive solution for service provisioning, since they incorporate energy-efficient cost-effec...

The Wireless Sensor Network (WSN) is regarded as the fastest expanding technological trend in recent years due its application a variety of sectors. In monitoring region, several sensor nodes with various sensing capabilities are installed to gather appropriate data and communicate it gateway. proposed system heterogeneous WSN employing LoRaWAN-Zigbee based hybrid communication explored this re...

LoRa or Long Range with LoRaWAN technology is a protocol for low-power wireless networks. The absence of an encryption process on the data payload becomes challenge network. When sending messages running inter devices, sniffing might occur, thereby reducing confidentiality aspect communication process. This paper optimized digital signature method to secure sent by network along Advanced Encryp...

The Internet of Things (IoT) is a major trend that seen as great opportunity to improve efficiency in many domains, including agriculture. This technology could transform the sector, improving management and quality agricultural operations, for example, crop farming. most promising data transmission standard this domain seems be Long Range Wide Area Network (LoRaWAN), popular representative low...

Abstract. Long-range, low-power, wide-area network modulation technique (LoRa) is already used in a variety of fields, such as agriculture and healthcare, to reliably transmit small amount data above ground. Research measuring the reliability signal strength LoRa devices underground, however, rare. The purpose this study test from shallow-depth, underground conditions. experiments are divided i...

Low-power wide-area networks enable large-scale deployments of low-power wireless devices. LoRaWAN is a long-range technology that has emerged as and low data rate solution to support Internet Things applications. Although provides cost-efficient networking solution, recent literature shows it performs poorly in terms reliability security dense due the uncoordinated (ALOHA-based) nature MAC (me...

Wireless Sensor Networks (WSNs) are a specific category of wireless ad-hoc networks where their performance is highly affected by application, life time, storage capacity, processing power, topology changes, the communication medium and bandwidth. These limitations necessitate an effective data transport control in WSNs considering quality of service, energy efficiency, and congestion control. ...