3 research outputs found
Context Aware Handover Algorithms For Mobile Positioning Systems
This work proposes context aware handover algorithms for mobile positioning
systems. The algorithms perform handover among positioning systems based
on important contextual factors related to position determination with efficient
use of battery. The proposed solution is implemented in the form of an Android
application named Locate@nav6. The performance of the proposed solution was
tested in selected experimental areas. The handover performance was compared
with other existing location applications. The proposed solution performed
correct handover among positioning systems in 95 percent of cases studied
while two other applications performed correct handover in only 50 percent of
cases studied.
Battery usage of the proposed solution is less than one third of the battery
usage of two other applications. The analysis of the positioning error of
the applications demonstrated that, the proposed solution is able to reduce
positioning error indirectly by handing over the task of positioning to an appropriate
positioning system. This kept the average error of positioning below
42.1 meters for Locate@nav6 while the average error for two other applications
namely Google Latitude and Malaysia maps was between 92.7 and 171.13
meters
A glimpse into the research space of location based services
Location Based Services are becoming an integral part of the wider telecommunication scenario. However, the approaches to provide Location Based Services and the research issues in this area are diverse and broad. In this paper, the present state of the Location Based Service systems has been analyzed. The analysis confirmed the heterogeneity of the research problems associated with Location Based Services as well as the array of solutions to address these problems. On one hand, the study carried out will enable one to get some idea about essential features for the implementation of a Location Based Service system. On the other hand, it is strongly believed that this study will assist researchers and the industry to get a sense of the multidimensional research space of Location Based Services which will be helpful for later exploration of this field