An Ad-Hoc network is collection of wireless mobile nodes forming a temporary network without the use of any established infrastructure or fixed centralized administration. In Ad-Hoc networks the communicating nodes do not depend on a fixed infrastructure, which sets a new challenge for the necessary security architecture which they apply. In such an environment, it is necessary for one mobile n...

A methodology is developed to deploy a mobile sensor network for the purpose of detecting and capturing mobile targets in the plane. The sensing-pursuit problem considered in this paper is analogous to the Marco Polo game, in which a pursuer Marco must capture multiple mobile targets that are sensed intermittently, and with very limited information. The competing objectives exhibited by this pr...

In these days, it is very important to trace a mobile in the vast mobile sensor network. It is mainly for identifying the location of the person who is using that mobile. For this application, the location of the mobile node (mobile) is to be found. This process is known as localization. Out of different types of localization techniques, range-free localization approaches are cost-effective for...

Recent advancements in the ubiquitous sensor network field have brought considerable feasibility to the realization of a ubiquitous society. A ubiquitous sensor network will enable the cooperative gathering of environmental information or the detection of special events through a large number of spatially distributed sensor nodes. Thus far, radio frequency identification (RFID) as an applicatio...

Sensor Node Localization is considered to be one of the most critical issues in a Wireless Sensor Network (WSN). The objective of localization is determination of physical co-ordinates of a group of sensor nodes. The location information plays a vital role for coverage, deployment of sensor nodes and rescue operations. Many applications such as routing and target tracking are all location depen...

-This paper describes the development and testing of a new evolutionary robotics research test bed. The test bed consists of a colony of small computationally powerful mobile robots that use evolved neural network controllers and vision based sensors to generate team gameplaying behaviors. The vision based sensors function by converting video images into range and object color data. Large evolv...

Research on communication collection pattern for traditional fixed nodes with some mobile ones has been already extensive. However, almost nothing is done in tiered movement policy while movement track is unknown and sensor nodes drift at random direction. To fit the development of “smart dust” wireless sensor network, a new moving control strategy based on RSSI real-time localization is propos...

As network has become more distributed, more global, and more complex, it has simultaneously become more exposed to threats and cyber terrors. In this paper, we suggest active security technology using sensors in active network, and sensor management mechanism using managing sensors. Also, we manage requirements for managing sensors in active security technology. It can be distinguished active ...

Using a mobile base station (BS) in a wireless sensor network can alleviate nonuniform energy consumption among sensor nodes and accommodate partitioned networks. In the work of Jerew and Liang (2009) we have proposed a novel clustering-based heuristic algorithm for finding a trajectory of the mobile BS that strikes a nontrivial tradeoff between the traffic load among sensor nodes and the tour ...

in mobile ad hoc networks, the absence ofinfrastructure and the consequent absence of authorizationfacilities impede the usual practice of establishing a practicalcriterion to distinguishing nodes as trusted and distrusted.since all nodes in the manets would be used as router inmulti-hop applications, secure routing protocols have vital rulein the security of the network. so evaluating the perf...