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IoT / Cloud / Big data / Mobile (ICBM) is a new technology paradigm that merges IoT, cloud, big data, and mobile technologies. In this study, we designed and implemented a smart farm environment management system that can collect and monitor information on crop growth utilizing ICBM technology. The wireless system proposed in this paper not only collects environmental data from the inside of a vast...
6LoWPAN enables IoT and WSN devices to connect to the Internet. The traffic caused by this increase of machines connecting to the Internet can overwhelm networks, leading to congestion. SDN, with its architecture that decouples the control plane from the forwarding plane, provides novel ways of dealing with network congestion as it allows easier manipulation of the network and its traffic flow. Taking...
In this paper, we explore the concept of flow-based load balancing of network traffic on multi-homed hosts. In contrast to existing approaches such as MPTCP, our approach is a client-side-only solution, and can therefore easily be deployed. We specifically explore flow-based load balancing for the web traffic use case. Experimental evaluations of our OpenFlow-based load balancer demonstrate the potential...
This paper proposes an asynchronous cycle circuit by providing Click element and joint module rather than clock-domain. The asynchronous mode of operation re-uses the simple asynchronous control protocols, takes full advantage of characteristics of Click, and commendably inherits the elasticity of the asynchronous micropipeline. The circuit in this paper has some individual coin. As a result, we can...
The rapid growth of data transmission over digital networks, especially of delay sensitive traffic, has meant that research into improved network control and management has increased. Network domain boundaries are key points in the network where service provisioning, flow control, and management occur between organizations. This paper presents a flexible automated approach that utilizes Software Defined...
Periodic event-triggered control for the consensus problem of multi-agent systems is investigated in this paper. Triggering conditions are discussed in two cases: 1) with communication between neighbors at each verification time, 2) with communication at triggering times. Based on Lyapunov theory and algebraic graph theory, consensus conditions on the verification period and triggering condition parameters...
Communication data in the communication network of the islanded micro-grid can be disturbed by many methods, such as data attack or packet loss. In order to overtake the communication data disturbance (CDD), a new hierarchical control structure is proposed in the paper. Based on the concept of cyber physical system (CPS), the control structure is divided into two layers: cyber layer and physical layer...
This paper considers the distributed output consensus problem of heterogeneous linear multi-agent networks with event-triggered communications. To handle the heterogeneity existing in the network, we first design adaptive event-based dynamic compensators for the agents. Distributed output feedback protocols, consisting of the dynamic compensators and the distributed state observers, the local controllers,...
To satisfy the requirements of complex distributed power electronic system (PES) communication, this paper has proposed a single optic-fiber link data communication protocol based on the Manchester code due to an vacancy in the commonly-adopted protocols, analyzed the encoding and decoding principle of Manchester code, defined the formats of command frame and data frame, calculated the communication...
Off-highway dump truck contains amounts of potential energy and kinetic energy. During the braking process, these two parts are consumed in the form of heat on the braking resistance, and the energy consumption will be about 24 percent of total energy consumption of the Truck. Hence, it is necessary to recover the braking energy. This paper, aiming at the characteristics of electric drive system in...
This paper presents signaling architecture models and protocol procedures for SDN-based wireless access networks with Media Independent Management (MIM) capabilities. Three models are described for the framework of SDN and MIM controls, which are decoupled interworking, loosely-coupled integration, and tightly-coupled integration between SDN and MIM controls.
Securing Internet of Things is a challenge because of its multiple points of vulnerability. In particular, Distributed Denial of Service (DDoS) attacks on IoT devices pose a major security challenge to be addressed. In this paper, we propose a DNS query-based DDoS attack mitigation system using Software-Defined Networking (SDN) to block the network traffic for DDoS attacks. With some features provided...
Software-defined networking (SDN) is a networking paradigm to provide automated network management at run time through network orchestration and virtualization. A central controller realizes the automatic network configuration in SDN at run time by conforming to a control plane protocol (e.g., OpenFlow) and switches act as simple forwarding devices. However, SDN are susceptible to cyber attacks and...
The advancement of technology reshapes our energy landscape over the past few decades. More sensors are deployed; more processes are being automated and more information is being exchanged between systems. Technology advancement brings enormous opportunities; For instance, optimizing operation, reducing outage time, turning raw data into useful business information etc. However, as we move deeper...
In this paper, a surrounding control problem for second-order agent system is investigated. A set of followers composed by the second-order agent networks is applied to surround a team of static leaders into a convex hull spanned by these followers. The problem is considered under a decentralized estimation-and-control framework by using tools from algebraic graph theory and Lyapunov stable theory...
In this paper, we address the finite-time tracking consensus control problem for nonlinear multi-agent systems under no-cycle communication graph. Unlike most existing works of finite-time consensus, we focus on nonlinear multi-agent systems with lower triangular subsystems. Based on the local cooperative information among neighboring agents, we propose a tracking consensus protocol ensuring that...
This paper proposes the service discovery and the remote control for Internet-of-Things (IoT) devices based on the Constrained Application Protocol (CoAP) and Domain Name System (DNS). As the number of devices increases, the manual configuration of domain names and services might be unmanageable for users. A legacy DNS Name Autoconfiguration (DNSNA) for IPv6 networks can be used to register the DNS...
Software-Defined Networking (SDN) is an innovational network architecture introduced a couple of years ago. It gives network administrators the ability to directly control the whole network by programming on a centralized controller, without manually configure each device. However, new security challenges come out with SDN development. One significant challenge is to design a secure firewall specifically...
Software Defined Networking (SDN) is rapidly gaining acceptance and use in terrestrial networks but little research has been done to apply it to aerial networks. This paper describes an investigation into five open-source controllers using a specific set of criteria based on the characteristics of these networks. A preliminary qualitative investigation compares the controllers based on their state...
This paper consider the cluster formation for multiagent systems with sampled-data method. The control of cluster formation is try to make each group of the agents realize distinct complete formation. For the sake of energy saving, a sampled-data control scheme is constructed for cluster formation. Then a sufficient condition based on linear matrix inequality techniques is given for the cluster formation...
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