Dynamic Data Management for Location Based Services in Mobile Environments
نویسندگان
چکیده
We characterize the dynamic data management problem for location based services(LBS) in mobile environments and devise a cost model for servicing both location independent and location dependent data. The cost analysis leads to a set of dynamic data management strategies that employs judicious caching, proactive server pushing and neighborhood replication to reduce service cost and improve response time under changing user mobility and access patterns. Simulation results suggest that different strategies are effective for different types of data in response to different patterns of movement and information access.
منابع مشابه
L ComFrame : A Communication Framework for Data Management in Mobile
Recent research in mobile computing has shown that Location Based Services (LBS) is an emerging area in mobile applications. It refers that services provided to the user based on location. LBS become the most promising services of mobile computing besides voice and data services. It's growing in popularity due to the ubiquity of smart phone users. Apart from positioning, LBS is highly dynamic, ...
متن کاملLocation Based Access to Moving Data Sources
Location based services in mobile environments have been recognized as a challenging problem that calls for new service models and dynamic strategies. The problem becomes even harder when not only the clients but also the data sources can move. We tackle the problem by providing a general service architecture that facilitates the employment of mobile codes. We then device a concise but effectiv...
متن کاملDesign and evaluation of two scalable protocols for location management of mobile nodes in location based routing protocols in mobile Ad Hoc Networks
Heretofore several position-based routing protocols have been developed for mobile ad hoc networks. Many of these protocols assume that a location service is available which provides location information on the nodes in the network.Our solutions decrease location update without loss of query success rate or throughput and even increase those.Simulation results show that our methods are effectiv...
متن کاملDesign and evaluation of two scalable protocols for location management of mobile nodes in location based routing protocols in mobile Ad Hoc Networks
Heretofore several position-based routing protocols have been developed for mobile ad hoc networks. Many of these protocols assume that a location service is available which provides location information on the nodes in the network.Our solutions decrease location update without loss of query success rate or throughput and even increase those.Simulation results show that our methods are effectiv...
متن کاملInformation Management in Mobile Environments Using a Location-aware Intelligent Agent System
Recent rise in the level of comfort and demand to access various types of information using mobile devices can be attributed to the advancements in wireless as well as Internet technologies. This demand leads us to the new era of mobile computing. Location-based services (LBS) are engendering new passion in mobile services utilizing users’ location information. Such spatio-temporal information ...
متن کامل