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This paper proposes a distributed filtering scheme over sensor networks with topology switching and topology-dependent event-triggered transmission schemes. A new monitoring mechanism is introduced to identify the topology switching instants, and the system output is sampled by sensors when the network topology switches. Based on the time-varying sampled-outputs, a group of distributed topology-dependent...
Based on the analysis of low voltage power line carrier network topology and the characteristics of the communication channel, the concept of splitting the data bus is proposed in streetlight monitoring system. The secondary network bus strategy is adopted to solve the problem of signal relay in the control of streetlights. Because the network topology of the streetlamp control system is a complex...
Network on Chip (NoC) has emerged as an interconnection solution for the modern digital systems, especially for System on Chip (SoC), due to the large number of IPs in the system that need to communicate. Various systems and routers have been introduced; hence the need to make a reusable verification environment to test both single routers and networks. In this paper, we propose a reusable verification...
Load balancing is the salient problem in data stream processing systems and also in complex event processing systems. And the imbalance in operational workers becomes extremely apparent as the scale is up with more workers and skewed datasets. In this paper, we find out that the upstream skewed sources can also exacerbate the load imbalance in the downstream workers and this bottleneck cannot be handled...
Most sensor networks employ dynamic routing protocols so that the routing topology can be dynamically optimized with environmental changes. The routing behaviors can be quite complex with increasing network scale and environmental dynamics. Knowledge on the routing path of each packet is certainly a great help in understanding the complex routing behaviors, allowing effective performance diagnosis...
Wireless devices such as sensors have increasingly more processing, storage, and networking capabilities, making wireless sensor networks (WSNs) get lots of attentions in recent years. In addition, the cost of sensors is constantly decreasing making it possible to use large quantities of these sensors in a wide variety of important applications in environmental, military, commercial, health care,...
The NoC Architecture plays crucial role while designing communication systems for System on Chip (SoC). The NoC architecture is improved over conventional bus, shared bus design and cross bar interconnection architecture for on chip networks. In order to improve the Quality of Service, Congestion, Throughput and latency in NoC, Hexagonal node based architecture is proposed in our previous paper[14]...
Software Defined Networking (SDN) is a new approach in network architecture which decouples the control plane from data plane. The SDN controller has the global view of the underlying network, enabling enormous research works in the area of traffic engineering (TE). Existing congestion control solutions for SDN TE are either reactive or proactive in nature. In reactive schemes when congestion event...
In Data center network, with the rapid development of network applications, how to balance the network load has become the focus of everyone's attention. It is required to fully utilize the resources such as bandwidth to provide high bandwidth for various cloud computing service. In this paper, we propose a dynamic load balancing routing mechanism based on disturbance under SDN. The proposed scheme...
In recent past, researchers have shown a lot of interest in Under Water Sensor Networks (UWSNs) because of its application in wide range of domains. UWSN, actually a sub body of Wireless Sensor Networks (WSN), facilitate with radio communication with high-precision of information to a sink node from any of the source node. The Role of any-casting is of significant importance in the context of routing...
Wireless sensor networks (WSNs) are widely used nowadays in various domains. In general, the applications in which the WSN is deployed need that this network presents a minimal degree of reliability, effectiveness and robustness. However, the specificity of the nodes deployed in this type of networks makes them prone to failures. In this paper, we discuss the recovery from simultaneous failures for...
The correct functioning of inter-domain routing is of vital importance to the ever expanding Internet. As a common threat to the Internet, prefix hijackings often hijack traffic destined to some Autonomous Systems(ASes), leading to routing black holes or traffic interception. In this paper, we study two typical categories of prefix hijackings, namely false origin hijacking and man-in-the-middle interception,...
Internet of Things becomes one of the main trends in development of future networks. It introduces new challenges to network operator, like exponential growth of the traffic, large amount of network nodes to manage or variety of services. Some IoT services include the control of critical processes such as remote manipulation of a robotic arm in tele-surgery. In such processes, keeping very low end-to-end...
Cyber-Physical System on Chip (CPSoC) is a special class of MPSoC consisting on-chip sensor-actuator integration to achieve self-awareness. This design sophistication is acquired by implementation of traditional processor cores along with virtual sensing and actuating IPs and connecting them by means of Network on Chip (NoC). In case of NoC, the network topology and routing decides the throughput...
The wireless sensor network (WSN) consist of wireless sensor nodes, which are deployed randomly in a surge of unforeseen applications. Topology Control (TC) is the most essential approach used for minimizing energy consumption that extends the in WSN time. Also increases the throughput of the topology and minimize the radio interference. The aim of the proposed context aware topology control is to...
Security in wireless sensor networks is critical due to its way of open communication. Packet modification is a common attack in wireless sensor networks. In literature, many schemes have been proposed to mitigate such an attack but very few detect the malicious nodes effectively. In the proposed approach, each node chooses the parent node for forwarding the packet towards sink. Each node adds its...
The cooperative monitoring problem refers to the placement and configuration of passive monitoring points (or monitors) to jointly realize a task of monitoring time-varying traffic flows. Given a traffic monitoring task, e.g., monitor a traffic flow percentage, the objective consists in minimizing the total monitoring cost to realize this task. We formulate the corresponding problem as a mixed-integer...
Wireless sensor networks (WSNs) is an area of research that has been getting a lot of attention lately. This is due to the rapid advancements in the design of wireless devices which have increasingly more processing, storage, memory, and networking capabilities. In addition, the cost of sensors is constantly decreasing making it possible to use large quantities of these sensors in a wide variety of...
Wireless sensor and actor networks are used enormously in critical applications. Due to their clustered structure, where the actors are the cluster heads, failure of an actor disrupts the inter-actor communication and may lead to partition in the network. Network thus partitioned divides the sensing area into discrete segments, leaving coverage holes. Dimension of such coverage holes depends on the...
Underwater sensor networks are gaining prominence in various applications of underwater monitoring and resource explorations. The minimum energy routing algorithms [2] are implemented in underwater oil resource explorations. The topologies already in use are wired where all sensor nodes behave as coordinator, except the PAN coordinator. This may increase the depletion of battery energy, and cost of...
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