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gps tracking and energy saving system in android mobile environments.

D.Venkateshwaran,V.Kumaran

Published in International Journal of Advanced Research in Electronics, Communication & Instrumentation Engineering and Development

ISSN: 2347 -7210          Impact Factor:1.9         Volume:1         Issue:1         Year: 08 November,2013         Pages:37-44

International Journal of Advanced Research in Electronics, Communication & Instrumentation Engineering and Development

Abstract

We consider a set O of objects, a query point q, and a positive value r. We use dist(o,q) to denote the distance between an object o e O and the query q. A distance-based range query returns every object o e O that lies within distance r of the query location q, i.e., every object such that dist(o,q) <= r. Our main focus in this paper is on euclidean distance-based range queries. Since the search space around the query is a circle in this case, such queries are also called circular range queries. We also consider the case when distance (o,q) is the network distance between o and q (e.g., queries moving in a road network). Another variation of the range query, which we term “rectangular range query” (also called window query), returns the objects that lie within a rectangle around the query location. Distancebased range queries and rectangular range queries are inherently different and have different applications. When clear by context, we use the term range query to refer to the distance-based range queries. Due to availability of inexpensive position locators, cheap network bandwidth and the mobile device with high computation and storage capabilities, location-based services are gaining increasing popularity.

Kewords

SWT, DWT, IDWT, LL, ImageResolution Synthesis.

Reference

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