標題: | Analysis of the direction-based location update schemes for wireless cellular networks |
作者: | Hwang, HW Tseng, CC Chang, MF 資訊工程學系 Department of Computer Science |
公開日期: | 2002 |
摘要: | In the paper, we first compare the performance of the direction-based location update (DBLL) schemes with that of the distance-based location update scheme under various mobility behaviors of the mobile hosts (MTs). The comparison results show that under the random walk model, the base DBLU scheme outperforms the distance-based location update scheme when the mobility to caff ratios (MCRs) of the MTs are low. However, it has been shown that the MTs are likely to possess forward-prone movement characteristics in micro-cellular architectures. If the MTs am indeed prone to make forward movements, the base DBLU scheme will he better than the distance-based location update scheme in all the MCRs according to our analysis. Therefore we further propose two enhanced DBLU schemes, namely the forward direction-based location update (FDBLU) and the restricted forward direction-based location update (RFDBLU) schemes, for the location tracking of the MTs m micro-cellular architectures. Analytical results also show that both FDBLU and RFDBLU schemes outperform the base DBLU scheme, and RFDBLU scheme is the best among the direction-based location update schemes. |
URI: | http://hdl.handle.net/11536/18751 |
ISBN: | 0-7803-7632-3 |
期刊: | GLOBECOM'02: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-3, CONFERENCE RECORDS: THE WORLD CONVERGES |
起始頁: | 1668 |
結束頁: | 1672 |
Appears in Collections: | Conferences Paper |