A location and tracking system becomes very important to our future world of pervasive computing. An algorithm for accurate location information is being incorporated in the human walking model and in the blind human walking model. We want to implement an accurate location tracking mechanism using Zigbee along with GPS, we have incorporated Markov chain algorithm for establishing accuracy. Norm...

Location-based service (LBS) is one of the most important applications related to GIS. In the past few years, there has been a rapid expansion of activities in LBS providing pedestrians with easy access to useful information whilst travelling from one place to another. LBS systems use the power of mobile networks to locate a user and provide data and services based on the location they are in. ...

Mobile user tracking is a major issue in wireless networks. Previous studies and traditional approaches dealt only with tracking algorithms which adapt themselves to the user activity. In this work we propose a novel approach for user tracking, in which the tracking activity is adapted to both user and system activity. The basic idea is to make the user location update rate dependent not only o...

We present a new non-blocking doubly-linked list implementation for an asynchronous sharedmemory system. It is the first such implementation for which an upper bound on amortized time complexity has been proved. In our implementation, operations access the list via cursors. Each cursor is associated with an item in the list and is local to a process. The implementation supports two update opera...

Ectopic pregnancy occurs in 1–2% of pregnancies and is the leading cause of maternal mortality in the first trimester; accounting for up to 15% first trimester deaths. There is a worldwide consensus regarding the use of transvaginal ultrasound (TVS) and (serial) quantitative serum human chorionic gonadotrophin (hCG) levels in the diagnosis of ectopic pregnancy. Diagnosis can be straightforward ...

Location tracking and control system require efficient resource management as well as reduction in their GSM network service cost. The data is transferred through GSM network by using SMS. This increases the system capability by efficiently managing tracking devices which could increase in number as time goes by (GPS) has become a common functionality in handheld devices, and therefore, several...

The integration of mobile IPv6 heterogeneous networks enhances networking performance; however, it also breaks mobile node’s anonymity and location privacy. In this paper, we propose an anonymous and location privacy preserving (ALPP) scheme that consists of two complementary subschemes: anonymous home binding update and anonymous return routability. In addition, anonymous mutual authentication...

Statistics and all of that global governance the demand for its use in the den or tool is increasing rapidly. In Iran, most of it in the areas of population away from the work of the twenty of the month and those of the other tool except it was not different items, due to the growth of public awareness and disseminating information about the properties in use of the tool and its use is growing....