Cross-layer congestion control of wireless sensor networks based on fuzzy sliding mode control

Qu, Shaocheng; Zhao, Liang; Xiong, Zhili

doi:10.1007/s00521-020-04758-1

Cited by 98 publications

(35 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The IOT is based on the Internet, using sensors, RFID radio frequency technology and communication technology to achieve automatic product identification and information sharing, forming a wide range of networks [20,21]. The topology of IOT application is shown in Figure 1.…”

Section: A Principles and Characteristics Of Iot (1)principles Of Iotmentioning

confidence: 99%

Economic Management Teaching Mode Based on Mobile Learning and Collaborative Learning

2020

View full text Add to dashboard Cite

The continuous development of the IOT technology is rapidly penetrating into all walks of life, which promotes the mobile Internet into a new service system, and mobile teaching methods with the characteristics of flexibility and interactivity are also becoming popular. This kind of learning mode enables students to get rid of the limitation of time and space, and can carry out targeted learning, so that different types of students can reasonably arrange their learning objectives according to their own learning quality. For students majoring in economic management, more and more enterprises require them to have practical ability and cooperation ability. Therefore, it is necessary to focus on cultivating students' cooperation ability and theoretical practice ability in education and teaching. However, the traditional teaching mode of "theory before practice" is no longer suitable for training such talents with comprehensive practical ability. At present, the experimental teaching using modern information technology can provide more comprehensive economic management information for classroom and teaching experiments. Therefore, in the environment of the IOT, it is of great significance to study the economic management teaching mode based on mobile learning and collaborative learning. This paper first introduces the principle and technical support of the IOT, analyzes the reform of economic management teaching mode under the environment of the IOT and the experimental teaching process using the IOT technology and virtual technology. On this basis, this paper studies the economic management experimental teaching mode based on mobile learning and collaborative learning, and makes a questionnaire survey on the students in the economic management experimental teaching center of colleges and universities. The survey results show that in the IOT environment, the experimental teaching mode based on mobile learning and collaborative learning can effectively mobilize students' learning enthusiasm, and can improve students' theoretical and practical ability, cooperative ability and autonomous learning ability to a certain extent.

show abstract

Section: A Principles and Characteristics Of Iot (1)principles Of Iotmentioning

confidence: 99%

Economic Management Teaching Mode Based on Mobile Learning and Collaborative Learning

2020

View full text Add to dashboard Cite

show abstract

“…Principle of Demodulation. According to the known basic theory of fiber grating, the Bragg wavelengths λ B and Δλ B have a linear relationship, and the strain of the fiber grating sensor is transmitted through the interface between the package and the measured surface [8], so the actual reaction of the fiber grating sensor is the strain transmitted to the sensor, rather than the actual strain at the interface of the building, has a certain proportional relationship, and may change with changes in external factors such as temperature [9,10]. For fiber Bragg gratings, the basic characteristics of the reflection spectrum are as follows:…”

Section: Research On Intelligent Structural System Of Civil Engineeringmentioning

confidence: 99%

Research and Development of Civil Engineering Intelligent Structure System

Xie

Gao

Cheng

2021

Advances in Civil Engineering

View full text Add to dashboard Cite

With the rapid development of global civil engineering construction, the intelligent structural system of civil engineering has evolved into one of the current global frontier disciplines. The research on the intelligent structural system of civil engineering and the current development situation are analyzed, and the main problems are combined. Giving reasonable suggestions is of great significance to the country's vigorous development of civil engineering intelligent structure system. This paper designs a new type of three-dimensional fiber grating sensor, including the design of the matrix model and the design of fiber grating strain gauges. This new sensor can effectively measure three-dimensional space, greatly expanding the application range of fiber grating sensors. In this paper, the design lighting area of each light pipe is taken as a unit. Each unit is set with 4 measuring points at the center and the edge. Each measuring point reads 3 illuminance value parameters and records the average value. Based on the results and comprehensive consideration of the short board situation, the research conclusions and recommendations are put forward. The foundation wall with aerated concrete blocks as the wall material can meet the requirements of 50% energy saving for exterior wall buildings with external decoration and internal insulation mortar. Compared with the benchmark wall of 50% energy saving of external wall buildings, the heat transfer coefficient is reduced by 50.1%, and the actual energy-saving effect of the wall can reach 75%. Meet the requirements of 65% for the energy-saving effect of exterior wall buildings. This paper considers economic parameters, such as the investment cost of building insulation materials, energy-saving income, and investment recovery period, and establishes a calculation model for analyzing the economics of insulation materials. Based on the heat transfer model of the composite wall and the fuel energy combustion equation, greenhouse gas is an established calculation model for CO2 and SO2 emissions. Studies have shown that when considering the room temperature insulation performance of insulation materials, the time required for the side of the concrete slab with glass fiber felt and aerogel insulation materials is about 2022 and 3363 s, respectively, indicating the fire resistance of aerogel insulation materials significantly better than fiberglass.

show abstract

“…We first test the network with the specifications of N=60, RTT=200ms, and C=152paket/s or bandwidth of 10mb/s. With these features, the network's congestion dynamics are equal to: (19) In this mode, we simulate congestion control for both classical control modes and fuzzy logic for the buffer with the desired queue of 100 using MATLAB software.…”

Section: Simulationmentioning

confidence: 99%

“…We considered the value of equal to 0.5. In this case, according to the value of b in the plant (19), which is 24.67, we apply the values of b as follows. First, we consider the value b to be 24.17 and apply it to plant (19).…”

Section: Effects Of Uncertainty In the Fuzzy Pid Controllermentioning

confidence: 99%

“…To solve the problem of congestion in wireless sensor networks used in medical, agricultural and military equipment, a method has been proposed [18] in which, using a combination of fuzzy logic and PID, congestion it is detected earlier, and the length of the buffer queue is adjusted by determining the probability of packet loss. In another study, a fuzzy sliding mode congestion control (FSMC) algorithm is presented in literature [19] which, the queue buffer length is adjusted in congestion nodes through a new model of congestion control between the transfer layer and the MAC layer, leading to a decrease in delay and the packet loss and also, to improvement in network power.…”

mentioning

confidence: 99%

See 1 more Smart Citation