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The rapid development of wireless communication technology facilitates the realization of the Internet of Things (IOT). Self-configuration and smart connection system have become relative important issue in accordance with extensive applications of IOT, and the energy saving concepts. Therefore, this work presents the integration of ‘Self-configuration and Wisdom Connection System’ with Wireless Sensor...
This paper used wireless sensor network of ZigBee wireless module, which was integrated with the microfluidic framework of flexible arrayed glucose sensor. In addition, the LabVIEW software was used to design the real-time monitoring system and the Origin software was used to analyze the measured data. The ruthenium dioxide (RuO2) sensing films were deposited on the flexible polyethylene terephthalate...
In this paper, we propose a time division method to solve the congestion control problem for an event-driven sensor network. In this method, a node adjusts time (therefore bandwidth) assigned to each upstream node by a dynamic TDMA approach to efficiently use resources available to the system and avoid the situation in which a node cannot send event information to the BS on time through the insufficiently...
The use of wireless sensor networks has enabled the process industry to collect a vast amount of hitherto unknown data by making physical monitoring of the underlying processes and equipment practically and economically possible. Wireless communication has led to new applications in the field of wireless process automation which in the past were subjected to economical, physical and technological...
In recent years, Internet of Things (IoT) has become the hottest issues of Future Internet. It is the most important concept of Future Internet for providing a common global IT Platform to combine seamless networks and networked things. However, there is a lack of common fabric for integrating IoT with current Internet. That results the service providers and operators have no definite specification...
Wireless Sensor Network (WSN) is still a hottest research topic which can be applied to a lot of new research field such as robotic and smart grid. Its not only used for detecting the new environment but also monitoring any situation which has dynamic variation. However, the sensor node is relied on the battery energy that limited the lifetime of entire network. In this paper, we proposed a novel...
Current CSMA-based MAC protocols for wireless sensor networks (WSNs) do not support prioritized channel access and often suffer from varying degrees of starvation and fairness problems. That is, with a little bad luck, a sensor node might have to wait arbitrarily long to send its frame, and thus results in the invisibility of some sensed area. In this paper we introduce a simple, but yet well performing...
In many applications, the query mechanism would co-exist with the data collection at the same time. If these two mechanisms can be combined, the query could utilize some information from the data collection and get benefits on the robustness and stability. We propose a query mechanism which can find the path without any additional beacons or packets and get information from the process of data collection...
Integration of sensors, embedded operating systems, wireless networking technology, wireless sensor networks, is a new information gathering and processing technologies, in environmental monitoring has a very good application and advantages. This paper introduced a method model based on ZigBee-technology. Depending on specific situation in environment, LEACH communication protocol was chosen. The...
This study was initiated to design a low noise amplifier (LNA), which could work with ultra low voltage of 0.5V and was optimized for WSN application using SMIC 0.13 μm RF-CMOS technology. The topology of differential inductance degenerated folded cascode based on power-constrained simultaneous noise and input matching (PCSNIM) technique was adopted. Chosen circuit demonstrated a power gain of 16...
Routing protocols for wireless sensor networks can be divided into proactive, reactive and hybrid routing. Each routing protocol has its advantages and disadvantages. A service is force-terminated when the working routing protocol can no longer support all sensor network operations. This work describes an adaptive routing protocol based on the redundancy node and the dual routing protocol. By using...
The performance of data query processing in wireless sensor networks is greatly affected by routing protocol. Currently available data query systems usually use one routing protocol to deal with all kinds of queries. This work demonstrates that properly selecting routing protocol according to different kinds of queries can improve the performance of query processing. We propose a dynamic routing layer...
The limited ability of conceptual layers to exploit the nature of mobile communications has led to cross-layer solutions that allow optimal operations for heterogeneous wireless network services. This study proposes a cross-layer-based quality-of-service (QoS) architecture that includes the QoS engine and the cross-layer algorithm. The QoS engine is composed of the QoS daemon, QoS agent and control...
In this paper, a localization system based on wireless sensor networks (WSN) is proposed for facilities of underground trackless mine. Today how to monitor Facilities of underground trackless mine effectively in security is the topic which needs to solve. As the development of science and technology, GPS has been widely used in many areas. However, as a result of the surface shielding effect, the...
Sensor network reprogramming is a challenging problem and code dissemination is one of the important part in this subject. This paper proposes a novel TDMA-based code dissemination protocol which can greatly reduce the redundant message receptions and collisions in the dissemination process. We divide a program image into pages and page dissemination is in pipeline to reduce latency and achieve easy...
Wireless sensor nodes have restricted computational resources, and are always deployed in a harsh, unattended or hostile environment. Therefore, network security represents a challenging task. This work presents a public-key based pre-distribution scheme with time-position nodes for simultaneous exchange of secure keys. The proposed defend attack and key management mechanism for sensor network applications...
This study presents a novel intelligent sensor network for object detection, classification, and recognition. Wireless sensors are utilized as the first layer to identify the coordinates of unauthorized intruders. Cameras are employed to capture image features for object classification and recognition. To reduce processing time, a novel hierarchical image extraction scheme is developed. Global object...
A sensor node is naturally exposed to various sources of unreliable communication channels and node failures. Sensor nodes have many failure modes, and each failure degrades the network performance. This work develops a novel mechanism based on a hybrid cluster-based routing protocol to specify the best reliable routing path for sensor networking. Table-driven intra-cluster routing and on-demand inter-cluster...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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