Location management scheme with WLAN positioning algorithm for integrated wireless networks

作     者：Tseng, Chih-Hsiung Cheng, Sheng-Tzong 

作者机构：Natl Cheng Kung Univ Dept Comp Sci & Informat Engn Tainan 70101 Taiwan 

出 版 物：《COMPUTER COMMUNICATIONS》 (计算机通信)

年 卷 期：2008年第31卷第18期

页      面：4304-4311页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Location-based services (LBS) Location management Positioning algorithm Received signal strength indication (RSSI) 

摘      要：The recent decade has witnessed a rapid growth in wireless communications technology. This study presents a location management scheme for integrated wireless networks and a signal-based positioning algorithm for WLAN. The proposed location management scheme provides location information to obtain from a hierarchical location database to mobile users and LBS providers. Additionally, a signal-based positioning algorithm is developed for indoor positioning based on WLAN received signal strength indication (RSSI). Approximated distribution modeling is applied to calculate the probability of users appearing in training points. This mechanism not only locates a mobile client precisely, but also reduces the cost of locating. A performance evaluation is performed to indicate the effectiveness of the proposed location management method, and provide suitable parameter settings. (C) 2008 Elsevier B.V. All rights reserved.