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An efficient data dissemination method for wireless devices

In the past few years there has been a rapid growth on wireless data applications in the commercial market. It shows that in the near future, a large number of mobile users carrying portable devices will be able to access a variety of information from anywhere at any time. This paper proposes two novel approaches for data dissemination in mobile networks. One is broadcast i.e., data are sent simultaneously to all users residing in the broadcast area without request from the user. This will conserve bandwidth but to retrieve a data item, a mobile client has to continuously monitor the broadcast until the data item of interest arrives. This will consume a lot of battery power since the client has to remain active during its waiting time. Second approach provides a solution to solve the above problem i.e., using indexing. The basic idea is that by including auxiliary information about the arrival time of data items on the broadcast channel, mobile clients are able to predict the arrivals of their desired data. Thus, they can stay in the doze mode and tune into the broadcast channel only when the data items of interest arrive. Several indexing techniques for wireless data broadcast have been analyzed to conserve battery power while maintaining short tuning time. This paper is analyzing the performance of indexing schemes in the context of mobile push based way broadcast. The results show that broadcasting method conserves bandwidth and indexing conserves energy.