scholarly journals Adaptive controller placement for wireless sensor–actuator networks with erasure channels

Automatica ◽  
2013 ◽  
Vol 49 (11) ◽  
pp. 3458-3466 ◽  
Author(s):  
Daniel E. Quevedo ◽  
Karl H. Johansson ◽  
Anders Ahlén ◽  
Isabel Jurado
Keyword(s):  
Adaptive Controller ◽  
Wireless Sensor ◽  
Erasure Channels ◽  
Sensor Actuator ◽  
Controller Placement

scholarly journals Communication system improvement with control performance based on link quality in wireless sensor actuator networks

2021 ◽  
Vol 11 (6) ◽  
pp. 5089
Author(s):  
Nada N. Tawfeeq ◽  
Sawsan D. Mahmood
Keyword(s):  
Fuzzy Inference ◽  
Automatic Gain Control ◽  
Gain Control ◽  
Adaptive Controller ◽  
Link Quality ◽  
Wireless Sensor ◽  
Control Performance ◽  
Validation Data ◽  
Inference System ◽  
Sensor Actuator

<span lang="EN-US">New communication and networking paradigms started with wireless sensor actuator networks (WSANs) to introduce new applications. One of these is the automatic gain control system (AGC). It will enable a high degree of the decentralized and mobile control. In this study, neural networks (NN) with fuzzy logic (one of the techniques of artificial intelligence (AI)) is used to enhance the control performance depending on the link quality. The NN and fuzzy inference system (FIS) with Mamdani’s method used to build a model reference, adaptive controller, for recompensing for delay time packets losses, and improving the reliability of WSAN. Between 88.62% and 99.99%, validation data is obtained for the medium and high conditions of operation with the proposed algorithm. Experimental and simulation results show a promising approach.</span>

Stabilization for Wireless Sensor/Actuator Networks with Reordering-Based Sample Rate Adaptation

2012 ◽  
Vol 433-440 ◽  
pp. 7097-7105
Author(s):  
Jin Na Li ◽  
Hai Bin Yu ◽  
Yan Hong Xie ◽  
Xiao Wen Pei
Keyword(s):  
Rate Adaptation ◽  
Stochastic Theory ◽  
Adaptive Controller ◽  
Sampling Interval ◽  
Delay System ◽  
Wireless Sensor ◽  
Linear Matrix ◽  
Sensor Actuator ◽  
Sample Rate ◽  
A New Technique

A novel sample rate adaptation technique is proposed for the wireless sensor/actuator networks with packet reordering. Considering network-induced delay and packet loss, a new technique for adapting the sampling interval to network parameters is studied in terms of the Reorder Density, such that a closed-loop switched delay system is presented by constructing state feedback controller. Furthermore, a criterion for stochastic stability of WSANs is derived based on the stochastic theory due to the subsystems subject to Markov chain. An adaptive controller is designed by solving linear matrix inequalities (LMI). An example is given to show the effectiveness of the proposed method.

scholarly journals Failure detectors for wireless sensor-actuator systems

2009 ◽  
Vol 7 (5) ◽  
pp. 1001-1013 ◽  
Author(s):  
Hamza A. Zia ◽  
Nigamanth Sridhar ◽  
Shivakumar Sastry
Keyword(s):  
Wireless Sensor ◽  
Failure Detectors ◽  
Sensor Actuator

Wireless sensor/actuator device configuration by NFC with secure key exchange

2017 ◽  
Author(s):  
Bernd Klauer ◽  
Jan Haase ◽  
Dominik Meyer ◽  
Marcel Eckert
Keyword(s):  
Key Exchange ◽  
Wireless Sensor ◽  
Sensor Actuator

Enabling Cross-technology Communication from LoRa to ZigBee in the 2.4 GHz Band

2022 ◽  
Vol 18 (2) ◽  
pp. 1-23
Author(s):  
Junyang Shi ◽  
Xingjian Chen ◽  
Mo Sha
Keyword(s):  
Information Dissemination ◽  
Ieee 802.15.4 ◽  
Time Synchronization ◽  
Mesh Network ◽  
Wireless Sensor ◽  
Communication Overhead ◽  
Process Industries ◽  
Sensor Actuator ◽  
Promising Solution ◽  
Communication Approach

IEEE 802.15.4-based wireless sensor-actuator networks have been widely adopted by process industries in recent years because of their significant role in improving industrial efficiency and reducing operating costs. Today, industrial wireless sensor-actuator networks are becoming tremendously larger and more complex than before. However, a large, complex mesh network is hard to manage and inelastic to change once the network is deployed. In addition, flooding-based time synchronization and information dissemination introduce significant communication overhead to the network. More importantly, the deliveries of urgent and critical information such as emergency alarms suffer long delays, because those messages must go through the hop-by-hop transport. A promising solution to overcome those limitations is to enable the direct messaging from a long-range radio to an IEEE 802.15.4 radio. Then messages can be delivered to all field devices in a single-hop fashion. This article presents our study on enabling the cross-technology communication from LoRa to ZigBee using the energy emission of the LoRa radio as the carrier to deliver information. Experimental results show that our cross-technology communication approach provides reliable communication from LoRa to ZigBee with the throughput of up to 576.80 bps and the bit error rate of up to 5.23% in the 2.4 GHz band.

scholarly journals Energy Consumption Analysis of WirelessHART Adaptor for Industrial Wireless Sensor Actuator Network

2017 ◽  
Vol 105 ◽  
pp. 227-234 ◽  
Author(s):  
Tran Duc Chung ◽  
Rosdiazli Ibrahim ◽  
Vijanth Sagayan Asirvadam ◽  
Nordin Saad ◽  
Sabo Miya Hassan
Keyword(s):  
Energy Consumption ◽  
Wireless Sensor ◽  
Sensor Actuator ◽  
Energy Consumption Analysis
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