Indexing Techniques in Wireless Environments
by Xu Yang
 

Wireless and mobile computing is one of the high growth areas in information technology. Mobile users will require information while on the move. This gives great flexibility and convenience for data access. There are increasing number of applications that utilize wireless data access. Broadcast is one of the most suitable forms of information dissemination over wireless networks. It is particularly attractive for resource limited mobile clients in asymmetric communications. To conserve battery power of mobile clients and support faster access of information, efficient data access methods are required. Our goal is to develop access methods, especially indexing schemes, for satellite based multimedia wireless databases. At first stage, we developed a testbed for the evaluation of existing wireless indexing schemes. The testbed provides the common benchmark for the performance evaluation. We present our criteria for selecting indexing schemes for different applications. We also explore how different factors affect the performance of these indexing schemes.