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This research aims to represent the ZigBee mesh routing and the performance under simulation environment for smart home. In the realistic smart home, researcher does not get some of the analysis and results. Hence, we designed and developed ZigBee best virtual smart home environment on Qualnet simulator. Finally, we suggest mixed-mode simulation methodology that integrates the smart home environment...
The positioning technology is one of the most important technologies in the wireless sensor network. The paper describes the current international positioning on several existing technologies, including the based ranging RSSI, TOA, TDOA, etc. and non-centroid algorithm based on distance, Amorphous algorithm, APIT algorithm and so on. Dv_Hop algorithm is a distributed localization algorithm based on...
After wormhole attacks the routing mechanism of wireless sensor network (WSN) is damaged, then the hop count and distance between nodes cannot be well matched, so that the WSN becomes the anisotropic sensor network, resulting in security treats for WSN. Considering that wormhole attacks can cause the changing of node connectivity, through the theoretical analysis and derivation, the paper has proposed...
Wireless Sensor Networks(WSNs) consists of hundreds of nodes which are of low power, low cost, and tiny devices. The main functionality of these nodes is to sense the environment and send the sensed data to the observer. In order to validate and get the significance of sensing data, location information of the sensor node needs to be combined with the sensed data. In addition to this, there are many...
Wireless sensor networks are extremely limited in terms of resources. Resource limitation includes limited energy rate, short range communication, low bandwidth, limited memory capacity and processing in every single sensor. Therefore, it is essential to use routing algorithms which lead to energy consumption reduction and suitable bandwidth efficiency. The proposed algorithm layered the sensor network...
Wireless sensor network (WSN) refers to a group of spatially dispersed and dedicated sensors for monitoring and recording the physical conditions of the environment and organizing the collected data at a central location. WSNs measure environmental conditions like temperature, sound, pollution levels, humidity, wind speed and direction, pressure, etc. Sensors are usually attached to microcontroller...
Recently Internet of Things(IoT) technology, especially the technologies used for Wireless Sensor Network (WSN) have attracted great amount of attention. Since ZigBee, which is a low-power and low cost technology, is appeared, related applications are proliferation. The studies of how energy efficiency can be further achieved are steadily on progress. In this paper, we propose a method which increases...
A distributed energy detection scheme that exploits the spatial-temporal correlation is proposed for heterogeneous cognitive radio (CR) sensor network. We first use the weighted centroid algorithm to localize the position of the PU. Then according to the localization result, selective measurement combining for weighted average consensus is adopted to fuse the energy detection outputs of only homogeneous...
The use of hierarchical structure in a wireless sensor network such as the Smart Grid can significantly improve monitoring networks through the use of data aggregation techniques. This reduces the processing at the central server as well as allowing for localized processing and decision-making at the nodes. However, existing routing protocols such as LEACH suffer from limited support for upstream...
The problem of distributed target localization with binary quantized data at sensor nodes is investigated in the presence of Byzantine attack. We assume that the Byzantine nodes attack the distributed estimation by flipping the binary quantized data and transmitting falsified data to the fusion center. In this paper, we propose a distributed target localization scheme in the presence of Byzantine...
In this paper, we address the problem of allocating channels to wireless users in the multiuser-multichannel dynamic spectrum access (DSA) scenario. To solve this problem, we introduce a special form of multi-armed bandit (MAB), named exploration bandit, into DSA for the first time. Two distributed algorithms are proposed to maximize the channel rewards (e.g., transmission rates) of the users. Meanwhile,...
Over the last decade, the level of critical infrastructure technology has been steadily transforming in order to keep pace with the growing demand for the services offered. The implementation of the smart grid, which relies on a complex and intelligent level of interconnectivity, is one example of how vital amenity provision is being refined. However, with this change, the risk of threats from the...
Energy utilization and fault tolerance are the two major issues in the development of a large scale wireless sensor networks (WSNs). In this paper, we propose a distributed algorithm to design an energy efficient cluster base WSN. We also propose a local recovery mechanism for the orphan sensor nodes, which are generated due to the failure of any cluster head. The proposed algorithm is based on cost...
In this paper, we propose a non-cooperative, dynamic and extensive game model for routing in a wireless sensor network (WSN). We treat each sensor node as a player who has a strategy to choose from in order to find the route that meets certain objective functions. A multi-hop routing is performed concurrently between multiple source and multiple destination nodes considering signal-to-noise-interference...
One of the most important challenges in heterogeneous wireless sensor network (WSN) is to design a routing protocol that use energy efficiently to prolong the lifetime of the entire network due to the limited battery power of sensor nodes. To solve this problem, in this paper, we propose Sector-Chain Based Clustering (SCBC) Routing Protocol, in which, entire network area is divided into sectors (clusters),...
Design complex embedded systems demands method and tools that allow the simulation and verification in an efficient and practical way. This paper proposes the development and evaluation of a distributed simulation platform of heterogeneous simulators based on High Level Architecture (HLA), a middleware for distributed discrete event simulation, in order to create an environment with high-performance...
Energy efficiency is an active research area in WSNs technology. There is an extensive research work going towards this direction and existing mechanisms fail to address the problem completely due to its limited specificity. This work focuses on the idea of enhancing the network lifetime on the basis of cluster-heads (CHs) remaining energy levels. Thus, instead of changing CHs at every round for dynamic...
In order to solve the problem of poor localization accuracy of DV-Hop algorithm, an improved DV-Hop algorithm is proposed in this paper. The proposed algorithm is based on RSSI technology to modify the hop count between nodes. The concept of basic signal strength of node which will be used to modify hop count is proposed in this paper. The hop coefficient and hopsize coefficient are set up to modify...
Recently, the major challenge in the design of wireless sensor networks is to enhance the network lifetime. Many researchers have studied the problem of constructing virtual backbones, which are the backbones used for different time periods, in order to prolong the network lifetime. In this paper, we study the problem of constructing virtual backbones in dual-radio wireless sensor networks to maximize...
This paper presents a Sequential Monte Carlo (SMC) method for the localization of an unknown number of RF sources with unknown transmit power. The proposed method uses Received Signal Strength (RSS) measurements taken by a network of static sensors and a guided moving sensor. A constraint is imposed on the number of trips that the moving sensor is allowed to make for the confirmation of the existence...
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