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Low-Power and Lossy-Network (LLN) are usually composed of static nodes, but the increase demand for mobility in mobile robotic and dynamic environment raises the question how the a routing protocol for Low-Power and Lossy-Networks such as (RPL) would perform in where a mobile sink is deployed. In this paper we investigate and evaluate the behaviour of the RPL protocol in fixed and mobile sink environments...
The deployment of Wireless Sensor Network(WSN) must be done with some kind of advanced techniques so that it can mitigate the energy constraints. An existing, clustered-based routing protocol known as Low-Energy Adaptive Clustering Hierarchy (LEACH) was studied, the outcome is an improved algorithm based on LEACH. The performance of these algorithms was studied through simulations using OMNeT++. In...
Modern manufacturing techniques small-sized transceiver modules allow you to create a wireless sensor network (WSN), with extremely low power consumption. The main purpose of such networks is to collect wirelessly readings from multiple sensors (sensor) distributed in the space for further storage, analysis and output of control commands.
Depending on the application development needs of wireless sensor network technology, a wireless motion sensor node is developed which integrates Bluetooth Low Energy (BLE) technology. This paper describes the overall architecture of the node as well as the hardware and software modules design. A motion sensing system is designed for testing the performance of the motion sensor node. The system can...
WirelessHART and IEEE 802.15.4 are the most suitable protocol for industrial applications. WirelessHART, in particular, overcomes some problems related to the IEEE 802.15.4 protocol such as the maximum number of Guaranteed Time Slots during which it is possible to transmit real-time information. However, the power consumption ofWirelessHART devices is still higher than IEEE 802.15.4. This article...
Secure Distributed Wireless Sensor Network (DWSN) is empowered by using an efficient key management technique. Battery powered sensor nodes faces precarious aspects during key distribution in order to reduce the energy consumption for the components of sensor nodes. Thus, implementing a key distribution algorithm should possess minimum power consumption. The proposed work steps towards greater heights...
Wireless sensor networks have scarce energy resources. Improvement in power saving and network lifetime is of great significance. Idle sensors do contribute to power consumption as good as the working sensors. Wireless communication systems power consumption and network lifetime can be improved if idle sensors are brought to sleeping state. We explored state of the art in sensor sleeping strategies...
Radio Frequency IDentification (RFID) is a technology used on a wide set of applications. One of its main advantages is its ability of identifying objects in a wireless fashion with no contact or a direct sight line among the communicating devices. By improving the underlying collision resolution protocol in an RFID system, the power consumption of such devices is improved as well. In this paper,...
Security is of critical importance for many potential applications of wireless sensor networks. Broadcasting from base station to nodes is very important in the cases such as distributing secure keys in the network or delivering control commands to nodes. However, the sparse distribution and limited resource of nodes bring difficulties to the efficient and reliable broadcast in wireless sensor networks...
Securing Network Program update is essential for many crucial military applications. Present Network Programming protocols proposed by Hailun Tan et al. provides confidentiality and authentication with high computational effort and power consumption. We have developed a confidential network program update protocol for clustered wireless sensor networks. Our scheme has two phases, key computation phase...
Reducing the time the radio is on in wireless devices results in lower power consumption, so sending the same data in fewer bytes can greatly extend the lifetime of a network. In this paper, we explore the use of protocol-agnostic packet compression, a technique orthogonal to current explicit compaction techniques. Because it functions as a transparent layer inside a communication stack and makes...
Securing Network Program update is essential for many crucial military applications. Present Network Programming protocols proposed by Hailun Tan et al. provides confidentiality and authentication with high computational effort and power consumption. We have developed a confidential network program update protocol for clustered wireless sensor networks. Our scheme has two phases, key computation phase...
Energy and lifetime are the most important design objectives in many wireless sensor network applications. In asymmetrical sensor networks, different sensors with various abilities are used. It is crucial to select the parameters of fit function and monitoring sensors optimally in a point coverage network. In this paper, our approach uses genetic algorithm to optimize the parameters of monitoring...
The main goal of Cluster-based sensor networks is to decrease system delay and reduce energy consumption. LEACH is a cluster-based protocol for micro sensor networks which achieves energy-efficient, scalable routing and fair media access for sensor nodes. However, the election of a malicious or compromised sensor node as the cluster head is one the most significant breaches in cluster-based wireless...
Recent advances in wireless sensor networks (WSNs) have led to many new promissing applications. However data communication between nodes consumes a large portion of the total energy of WSNs. Consequently efficient data aggregation technique can help greatly to reduce power consumption. Data aggregation has emerged as a basic approach in WSNs in order to reduce the number of transmissions of sensor...
In this paper, we proposes a multi-gateway nodes data collected routing algorithm based on load balancing(TBLB algorithm) and energy balance, robustness, data forwarding and anti-interference etc, which is multi-gateway nodes-based in wireless sensor network. This algorithm fully takes into account the problem of excessive power consumption when it serves as the data forwarding task, to reduce node...
We describe the design and development of a wireless sensor network for monitoring the microclimate indoors. Such a network is useful for applications such as thermal comfort monitoring and artwork collections management. To simplify the design of the sensor node, we use an ASK transmitter and the ALOHA without retransmission protocol. This greatly simplifies the communication between the sensor node...
One of the important and challenging matters in sensor network is energy of life span of nodes in the network. Node's movement, specifically movement of central node (sink) in these networks cause to increase routing updating overhead and consequently to increase power consumption and to decrease network life span. Directed Diffusion algorithm is one of methods in sensor network which is a data-oriented...
The radio applications in wireless sensor networks where the energy constraint is vital are considered. In this context, the impact of cooperative strategies is analyzed thanks to the realistic power model of a real radio transceiver. A system using a two-antenna source, two one-antenna relays and one-antenna destination is considered. Three types of association strategies of Space time coding and...
Sensor networks have applications that have spread widely in various fields of the industry; and one of the most useful applications is data collection. Specifically, the data collection for large areas has become critical in commercial industry, science, and academic researches. However, the existing relevant MAC protocols have shown their unsuitability to apply for these systems. In our previous...
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