For access to this article, please select a purchase option. Lq optimal and reaching lawbased sliding modes for inventory management. Pdf sliding modelike congestion control for communication. Intelligent control of road vehicles for automated driving. Minimum delay congestion control in differentiated service. Sliding mode control with industrial applications wuchung su, ph. Introduction the sliding mode control approach is recognized as one of the efficient tools to design robust controllers for complex highorder nonlinear dynamic plant operating under. Advantages of the proposed sliding mode control related with reduction of steady state error, settling time and percentage overshoot are summarized. We also prove the optimality and convergence of the sm based solution to the num problem. The statefeedback control law is not a continuous function of time. Robustness against modeling uncertainties and disturbances are major features of sliding mode controller.
Sliding mode congestion control in differentiated service. Congestion control in cognitive radio networks with eventtriggered. Chattering and congestion collapse in an overload switching. Among wide spectrum of algorithms we can distinguish slidingmode. Higher order sliding mode control, control lyapunov function, finite time stability 1 introduction sliding mode control smc has many attractive features such as invariance to matched uncertainties, simplicity in design, robustness against perturbations and some others.
Since the proposed reaching law does not require switching of the sliding variable between positive and negative values in each successive control step, it leads to chattering. In this study, a new reaching law for sliding mode control of discrete time systems is proposed and applied to solve the problem of congestion. Sliding mode control for timevarying delayed systems based on a reducedorder observer is considered by yan et al. Recently, the communication network based on tcp has been rapidly. This work presents the design of a robust nonlinear congestion controller based on eventtriggered sliding mode for cognitive radio networks. Therefore, it is more practical to study on a discrete sliding mode congestion. It shows how various networking phenomena can be represented in a consistent mathematical framework suitable for rigorous formal analysis. Sliding mode approach to congestion control in connection. Furthermore, several applications in the process control and process identi. Congestion control mechanism to perform congestion control, we need two basic protocols algorithm i. Compared with qcn, which unconsciously utilizes the advantages of the sliding mode motion pattern. Abstract in this paper sliding mode controllers smcstechniques are used and investigated for congestion control problem of differentiated services diffserv networks.
When bottleneck buffers are large, neal cardwell yuchung cheng c. The communication among these two sub problems is given by the lagrangian price value. Request pdf sliding mode congestion control for diffserv networks a nonlinear fluid flow model is used in this paper to analyze and control diffserv networks. The sliding mode control is demonstrated for linear timeinvariant systems and for control of induction motors. When congwin is aboveis above threshold,senderisin, sender is in congestion avoidancephase, window grows linearly. In this study, a new reaching law for sliding mode control of discrete time systems is proposed and applied to solve the problem of congestion avoidance in multisource, connection oriented data transmission networks. Design a congestion controller based on sliding mode variable. The congestion control in connectionoriented networks has recentlybeen studied in several papers 112.
Introduction in this chapter, controllers are designed which achieve wheelslip control for vehicle motion. Recently, the discretetime sliding mode congestion control with timevarying delay for multisource communication networks was presented by ignaciuk and bartoszewicz. Discrete sliding mode control has been extensively studied to address some basic questions associated with the sliding mode control of discretetime systems with relatively low switching frequencies. Reaching lawbased sliding mode congestion control for. Sliding mode learning control and its applications swinburne. Sliding mode congestion control for data center ethernet. The control algorithms proposed in thosepapers employ a proportional plus derivative 10, stochastic 7, adaptive 9 and smith predictor based control strategies 1, 2, 11, 12. Citeseerx congestion control based on sliding mode control.
Sliding mode control provides insensitivity to parameter variations and disturbances. Introduction future ad hoc networks aim to provide high data rate. Effective congestion control strategies allow in maintaining low delay and high throughput in data. We design the sliding mode congestion control smcc scheme for dce. Adaptive congestion control to improve performance in. Router based schemes this class of work involves switches or routers in the congestion control process. The discretetime sliding mode control with computation time.
Qcn may fail to reach the equilibrium point via the sliding mode motion, and become unstable in certain conditions. Conclusion acknowledgement glossary bibliography biographical sketch summary the paper presents the basic concepts, mathematical and design aspects of sliding mode control. Keywords bldc motor, exponential reaching law and sliding mode. Department of electrical and computer engineering, concordia university, montreal, quebec h3g1m8, canada.
Not only the problem of network congestion, but also the problem of data collision is taken into account. Adaptive finitetime congestion control for uncertain tcpaqm. A discretetime sliding mode congestion controller for. Jan 01, 2021 by regulating incoming and outgoing packets at a particular node, this paper first proposes a new traffic based discrete congestion control model in wsns. Predictive slidingmode congestion control for wireless.
Tcp congestion control renotcp congestion control reno when congwin is below threshold, sender in slowstart phase window growsphase, window grows exponentially until loss event or exceeding threshold. Robust congestion control using sliding mode control in. Because the simple cc mechanism involves timeouts that cause retransmissions, it is important that hosts have an accurate timeout mechanism. In this article, the authors proposed a model predictive based sliding mode control mpsmc based ramp metering rm strategy for highway traffic control. Article information, pdf download for datadriven modelfree sliding. Control schemes developed in this chapter are based on controlling wheel slip. It is shown that the main advantages of sliding mode control are order reduction. Roohollah barzamini amirkabir university of technology.
Eventtriggered sliding mode control under the roundrobin. The premium and ordinary passage services based fluid flow theory is used to. Predictive sliding mode congestion control for wireless access networks with singular and nonsingular control gain. In addition, a reachinglaw based discrete sliding mode control algorithm dsmc was proposed to balance the inflows and outflows of nodes frame buffer.
International journal of research in engineering and technology eissn. Sliding mode congestion control has become a hot research topic. Congestion control in data transmission networks sliding. This paper is about the application of adaptive sliding mode control to solving congestion problem for diffserv network. As an effective mechanism acting on the intermediate nodes to support endto end congestion control, active queue management aqm takes a tradeoff. Sliding mode congestion control for data center ethernet networks. These robustness properties make this discontinuous control strategy very attractive. Request pdf sliding mode learning based congestion control for diffserv networks in this study, a robust sliding mode learning control. A sliding modebased congestion control for time delayed. Discrete global sliding mode preestimate congestion control. For the prelimit stochastic system, chattering implies. Design a congestion controller based on sliding mode. Buffers on network devices are managed with various queuing techniques. Congestion control based on sliding mode control and scheduling with prioritized queuing for wireles, author.
Based congestion control for connectionoriented communication networks. Designing robust control by sliding mode control technique. Congestion control of wireless sensor networks using discrete. Sliding mode based joint congestion control and scheduling in. Pdf a sliding modebased congestion control for time. However, wsns are very vulnerable to congestion problem, resulting in higher packet loss ratio, longer delay and lower throughput.
Aqm algorithm, termed dsm, based on the discrete sliding mode control dsmc theory. Jun 18, 2015 pdf model based fuzzy control fuzzy gain schedulers and sliding mode fuzzy controllers download full ebook. A multiple model predictive congestion control scheme for. A tcp congestion control mechanism based on a sliding window mechanism where an additive increase multiplicative decrease aimd algorithm is employed to fit the transmission rate to available network resources is. Citeseerx congestion control based on sliding mode. Sliding mode congestion control for diffserv networks. Pdf applying fuzzy sliding mode control based on genetic. Discretetime slidingmode congestion control in multisource communication. The application of sliding mode control in wireless network is used for considering the joint congestion control and scheduling.
Robust congestion control using sliding mode control in tcp. These prototypical rates of input and service mutually have pdf. Apr 28, 2020 the eventtriggered sliding mode control problem is addressed for a class of networked switched systems subject to communication constraints. The sliding mode of congestion controller could be expressed as follows. However, in fact, many devices in internet are digital ones. Congestion control based on sliding mode control and. Wireless sensor networks wsns act as a building block of internet of things and have been used in various applications to sense environment and transmit data to the internet.
Network model further in the paper, t represents the discretisation period, ykt denotes the bottleneck queue length at time instants kt, k 0, 1, 2, and yd 0 is. Crosslayer congestion control of wireless sensor networks. A sliding mode based congestion control for time delayed differentiatedservices networks k. A variable structure control approach to active queue. The robustness capabilities of sliding mode variable structure control smvsc technique are utilized as a design basis for a new congestion control strategy subject to inaccurateuncertain. In 15, considering the limited input of the tcp network system, an aqm algorithm is p. An evolutionary aspect of the three different controllers will be mentioned. Reaching law based sliding mode congestion control for communication networks. It is also worth to recall the chattering attenuation conventional slid. Congestion control in data transmission networks details the modeling and control of data traffic in communication networks. Properly managed queues can minimize dropped packets and network congestion, as well as improve network performance. Today tcps loss based congestion control even with the current best of breed, cubic 11is the primary cause of these problems. Furthermore, smcc is superior to qcn in the following aspects.
Timeouts set as a function of average rtt and standard deviation of rtt. Robust congestion control in cognitive radio network using dynamic event. Robust congestion control using sliding mode control in tcpip. A nonlinear fluid flow model which is transformed into a parametric strict feedback form is used to analyze and control. Sliding mode learning based congestion control for diffserv. Ieee 20 ns2 sliding mode based congestion control and. Sta control design parameters supertwisting algorithm. Sliding mode based congestion control and scheduling for multiclass traf. However, the complex dynamical behaviours due to discretization in continuoustime smc systems have not yet been fully explored. In control systems, sliding mode control smc is a nonlinear control method that alters the dynamics of a nonlinear system by application of a discontinuous control signal or more rigorously, a setvalued control signal that forces the system to slide along a crosssection of the systems normal behavior. Incorporating dual decomposition enables the joint congestion control and scheduling problem to be considered separately. Star citizen relative modeheading based control video. A description of a link layer controller consistent with. The sliding mode control filippov theory physical interpretation of the equivalent control invariance in sliding modes sliding mode control design using the sliding mode control.
Datadriven modelfree sliding mode learning control for a class of. International journal of information technology vol. The same as standard sliding mode control, second order sliding mode. Based on the recent internet advances, congestion control is considered as an important issue and has spurred a significant amount of research.
Network model further in the paper, t represents the discretisation period, ykt denotes the bottleneck queue length at time instants kt. To address this issue, this paper presents a fuzzy sliding mode congestion control. Lastly, the research result of chapter 8 on discretetime sliding mode learning. Sliding mode control is a typical nonlinear control. The discretetime sliding mode control with computation. The issue of adaptive practical finitetime ft congestion control for the. Control of braking force is attained by controlling the wheel slip because of the relationship. Then, based on this model, an exponentialreachinglaw based discretetime sliding mode congestion controller dsmc is designed, which effectively adjusts bottleneck nodes queue length to. Different from perdestination queueing in the existing works. The sliding model variable structure control is one of the perfect techniques in robust control theory for our purpose. Pdf on jun 1, 2015, jiong jin and others published sliding mode like congestion control for communication networks with heterogeneous. Grey wolf optimizationbased second order sliding mode. Stephen gunn soheil hassas yeganeh van jacobson 1 of 34 text bbr only congestionbased congestion control. However, whether the sliding mode motion occurs in the qcn system also depends on both system parameters and network configuration.
Discrete global sliding mode preestimate congestion. The controller design is based on the integrated dynamic congestion control strategy. In order to lighten network overloads and save bandwidth, an eventtriggered scheme is utilized to decide whether a datum is transmitted or not and. In the section ii, the concept of higherorder sliding modes is introduced. Adaptive sliding mode congestion control for diffserv network. Sliding mode based joint congestion control and scheduling. The strategy includes sliding mode control smc which makes it immune to uncertainties and provides fast responses while the addition of model predictive control mpc will provide optimality. Based on the utility optimization of network the congestion control performance for queues can be improved using sliding mode based congestion controller. But these references work based on continuous system. Jun 02, 2005 for a changeable network, the robust control should be an appropriate approach to design the aqm controller that is able to accommodate variability and disturbance in networks. One group is based on quasi strict knowledge of dist. Robust congestion control in cognitive radio network using dynamic. In this paper different second order sliding mode controllers are proposed to solve the infinite switching problem.
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