Distributed Air Indexing Scheme for Full Text Search on Multiple Wireless Channel
Wireless data broadcast is the most popular method to disseminate frequently requested data efficiently to a large number of mobile devices. Full text search is a popular query type, for retrieving the documents. Many research efforts have been made which focuses how to apply full text search on wireless broadcast. By increasing the numbers of broadcast channels is a logical way to minimize the energy consumption and access latency. In this paper, we further extend the problem of generating a broadcast sequence of data items to facilitate energy efficient full text search on multiple wireless channels. To support our proposed indexing scheme, we propose a data access algorithm and a data broadcast model for full text search indexing scheme on multi channel. Since the energy of portable devices is limited, minimization of energy consumption and access latency for broadcasting are the important issues. The performance of the proposed scheme is further analyzed and compared with existing full text search indexing schemes. The results show the efficiency of our approach with respect to energy consumption and access latency.