在無線環境中,使用廣播的方式來傳送資料不僅可以節省頻寬,同時也可以降低伺服端資源的使用。由於無線廣播資料排程的順序將影響客戶端接收資料的時間,伺服端如何決定廣播頻道上資料的佈置在無線環境中是重要的議題之一。 本研究運用漸近基礎的方式安排資料在廣播排程上的順序。實驗證明本研究所提出的方法較之前別人所提的方法其效果要來的好。 Broadcasting is an efficient method for resolving the bandwidth limitation in wireless environment. Due to the ordering of data items on a broadcast channel affects the clients’ access time, how to decide the data placement in broadcast channel to reduce the clients’ access time is an important issue in wireless environment. In this paper, we apply a Relaxation-Based method to the data placement of broadcasting. A comparison to previously published algorithms shows that the results of our algorithm are superior.