The considerable advancement of Hardware manufacturing Technology and the progress of Efficient Software Algorithms formulate technically and economically feasible a Network consist of a range of, small, low-priced Sensors by means of Wireless Communications, that is, a Wireless Sensor Network. Wireless Sensor Network has fascinated thorough importance from both academic world and Industry as o...

Radio Frequency Identification (RFID) and Wireless Sensor Network (WSN) are two important wireless technologies that have wide variety of applications and provide limitless future potentials. However, RFID and sensor networks almost are under development in parallel way. Integration of RFID and wireless sensor networks attracts little attention from research community. This paper first presents...

This paper designs the mathematical model of fiber line power, optimization of wireless sensor network node and multi distributed IP, and uses C language to program the model, finally get a new energy-saving mechanism model of wireless sensor network. Combined with the distributed IPv6 technology and IEEE802.15.4 protocol, this paper designs a new 6LoWPAN wireless sensor network energy-saving m...

Wireless sensor network is widespread used in hospital environment with mobile device such as NFC, RFID tag and small sensor nodes. The use of a mobile agent in healthcare system under wireless network environment gives an opportunity to offer better services for patients and staffs such as doctors and nurses because of its mobility. But, optimized security protocols and schemes between sensor ...

An important problem in distributed systems that are subject to component failures is the distributed diagnosis problem. In distributed diagnosis, each working node must maintain correct information about the status (working or failed) of each component in the system. In this paper we consider the problem of identifying faulty (crashed) nodes in a wireless sensor network and used timed automata...

in recent years, many researchers have been done in the area of wireless sensornetworks that has led to the variety of algorithms and methods for the collection andtransmission of environment information; but still many challenges faced bywireless sensor networks using methodologies are applied in various fields. such asmedia access control that due to the media being shared on these networks, ...

A wireless sensor network is often built for a specific purpose, and sensors are required to collaborate to accomplish a common task. Many of these tasks can be regarded as computations of functions of the sensor measurements. In this chapter, we study such a function computation problem in wireless sensor networks under two different scenarios. In Section 1.2, we consider a wireless sensor net...

This paper introduces a K-Centers clustering protocol for heterogeneous wireless sensor networks. Energy consumption is an important issue for wireless sensor networks, and sensor nodes consume most of their energy with data delivery. The energy needed to transmit data is proportional to the distance between sensor nodes and either cluster heads or a base station. Clustering is an efficient tec...

This thesis considers two important issues for video sensor networks, (1) timely delivery of captured video stream and (2) energy-efficient network design. Based on network calculus, it presents a unified analytical framework that is able to quantitatively weigh the tradeoff between these two factors. In particular, it derives the service curve, buffer and delay bound under singlehop and multi-...