本文關鍵詞： 無線傳感器網(wǎng)絡 GAF算法 相交圓結構 簇頭選擇函數(shù) 中轉節(jié)點　出處：《計算機工程與設計》2014年12期 　論文類型：期刊論文

【摘要】：針對GAF算法的不足,提出一種基于相交圓結構的改進GAF算法。采用相交圓結構模型進行單元格劃分,增大每個單元格的面積及節(jié)點單跳覆蓋范圍,在相交圓的重疊區(qū)域中進行中轉節(jié)點的選擇,實現(xiàn)簇頭間的多跳路由;在簇頭選擇階段,根據(jù)節(jié)點吞吐率等條件定義的簇頭選擇函數(shù)來選擇簇頭。仿真結果表明,改進GAF算法能有效節(jié)約能耗,延長網(wǎng)絡生存期。
[Abstract]:An improved GAF algorithm based on intersecting circular structure is proposed to solve the shortcoming of GAF algorithm. The intersecting circular structure model is used to divide the cells to increase the area of each cell and the coverage range of single hop node. In the overlapping region of intersecting circle, the transfer nodes are selected to realize the multi-hop routing between cluster heads, and the cluster heads are selected according to the cluster head selection function defined according to the node throughput and other conditions in the cluster head selection stage. The simulation results show that, The improved GAF algorithm can effectively save energy and prolong the network lifetime.
【作者單位】： 西安郵電大學電子工程學院;空軍工程大學信息與導航學院;
【基金】：國家自然科學基金項目(61202490) 陜西省教育廳科學研究計劃基金項目(13JK1099)
【分類號】：TP212.9;TN929.5
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本文編號：1523611