教師資料查詢 | 類別: 期刊論文 | 教師: 吳庭育 Tin-yu Wu (瀏覽個人網頁)

標題:Efficient IEEE 802.11 Handoff Based on a Novel Geographical Fingerprint Scheme
學年94
學期2
出版(發表)日期2006/02/01
作品名稱Efficient IEEE 802.11 Handoff Based on a Novel Geographical Fingerprint Scheme
作品名稱(其他語言)
著者吳庭育; Lai, Cheng-chia; Chao, Han-chieh
單位淡江大學電機工程學系
出版者
著錄名稱、卷期、頁數Wireless Communications and Mobile Computing 6(1), pp.127-135
摘要The effective coverage distance of wireless LAN (WLAN) being small, users may leave the coverage area of the specific access point (AP) from time to time while roaming. However, the wireless network is a shared medium. The air is open for everyone. In general there is collision if a few users attempt to transmit with the same channel that is more rigorous during handoff period because of active scan mode. The active scan will perform requests for searching available AP. Unfortunately, this function consumes too much resource in wireless communication, and also affect total performance. We will propose an advanced active scan to improve it. In our proposal, we convert RF signal distribution to a simple classification problem, like as XOR classifier with artificial neural network (ANN). We combine ANN with active scan to achieve our goal. And the weight, which trained by ANN presents the connection character of geography. Moreover, the weight could be stored in AP for reusing and is called geographical fingerprint. The average enhancement of reducing the active scan area is about 62%.
關鍵字
語言英文
ISSN
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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