| Summary: | 碩士 === 南華大學 === 資訊管理學研究所 === 94 === Requirement of information keep growing up even in the time of information explosion. In response to this continuous requirement for information, number of data delivery medium and data spreading method are also increasing. The wireless broadcast is the new way of spreading information, which is also one of the answers to the growing demand of information and increasing mobility of client. Since the number of mobile application and mobile user keep increasing nowadays. Broadcasting the hot data for clients’ query request is one of frequently used method which can efficiently convey data to vast number of clients. Mobile host can constantly read from the broadcasted channel and cache the hat data into memory in order to have a quick response for frequently submitted query.
Due to the bandwidth limitation in wireless environment, we propose a cache strategy for broadcasted data in cache server which consider the situation that different clients'' query request can have same data items, by replacing the data item with minimum demand, the average clients’ query request can be minimize. Via the result of simulation experiments, by using our proposed cache strategy, the response time for average clients’ query request can be reduced.
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