A Mobility-aware Tree Construction Algorithm For Zigbee Networks

碩士 === 國立臺灣大學 === 資訊工程學研究所 === 97 === Zigbee, based on the IEEE 802.15.4 standard, is a specification for wireless personal area network with the properties of low‐power, low‐cost, low‐data rate. Zigbee supports 3 kinds of network topologies, i.e., star, tree and mesh, and the tree topology is widel...

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Main Authors: Kuan-Chang Chen, 陳冠昌
Other Authors: Ai-Chun Pang
Format: Others
Language:en_US
Published: 2009
Online Access:http://ndltd.ncl.edu.tw/handle/77115060049607426736
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spelling ndltd-TW-097NTU053921012016-05-02T04:11:09Z http://ndltd.ncl.edu.tw/handle/77115060049607426736 A Mobility-aware Tree Construction Algorithm For Zigbee Networks 針對移動節點的Zigbee拓樸生成演算法 Kuan-Chang Chen 陳冠昌 碩士 國立臺灣大學 資訊工程學研究所 97 Zigbee, based on the IEEE 802.15.4 standard, is a specification for wireless personal area network with the properties of low‐power, low‐cost, low‐data rate. Zigbee supports 3 kinds of network topologies, i.e., star, tree and mesh, and the tree topology is widely adopted for wireless sensor applications. When a device in the tree network moves away from its previous position, the data delivery to the device might fail, and the data broadcasting which cause extremely large resource consumption would be activated. We present a method to deal with the mobility issue and efficiently send data to mobile devices in a Zigbee tree network. The problem is formulated as a graph, and a suitable tree topology is constructed to increase the data delivery ratio for mobile devices. We show NP‐hardness of this problem and prove that the approximation with any ratio 0≦ρ≦1 does not exist unless NP = P. A heuristic algorithm for this problem is developed and experimental results demonstrate the performance of the heuristic algorithm compared to the optimal solution. Ai-Chun Pang 逄愛君 2009 學位論文 ; thesis 34 en_US
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description 碩士 === 國立臺灣大學 === 資訊工程學研究所 === 97 === Zigbee, based on the IEEE 802.15.4 standard, is a specification for wireless personal area network with the properties of low‐power, low‐cost, low‐data rate. Zigbee supports 3 kinds of network topologies, i.e., star, tree and mesh, and the tree topology is widely adopted for wireless sensor applications. When a device in the tree network moves away from its previous position, the data delivery to the device might fail, and the data broadcasting which cause extremely large resource consumption would be activated. We present a method to deal with the mobility issue and efficiently send data to mobile devices in a Zigbee tree network. The problem is formulated as a graph, and a suitable tree topology is constructed to increase the data delivery ratio for mobile devices. We show NP‐hardness of this problem and prove that the approximation with any ratio 0≦ρ≦1 does not exist unless NP = P. A heuristic algorithm for this problem is developed and experimental results demonstrate the performance of the heuristic algorithm compared to the optimal solution.
author2 Ai-Chun Pang
author_facet Ai-Chun Pang
Kuan-Chang Chen
陳冠昌
author Kuan-Chang Chen
陳冠昌
spellingShingle Kuan-Chang Chen
陳冠昌
A Mobility-aware Tree Construction Algorithm For Zigbee Networks
author_sort Kuan-Chang Chen
title A Mobility-aware Tree Construction Algorithm For Zigbee Networks
title_short A Mobility-aware Tree Construction Algorithm For Zigbee Networks
title_full A Mobility-aware Tree Construction Algorithm For Zigbee Networks
title_fullStr A Mobility-aware Tree Construction Algorithm For Zigbee Networks
title_full_unstemmed A Mobility-aware Tree Construction Algorithm For Zigbee Networks
title_sort mobility-aware tree construction algorithm for zigbee networks
publishDate 2009
url http://ndltd.ncl.edu.tw/handle/77115060049607426736
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