English  |  正體中文  |  简体中文  |  Items with full text/Total items : 58204/91779 (63%)
Visitors : 13775102      Online Users : 65
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/94436

    Title: 在WiFi與Zigbee共存網路中提昇Zigbee傳輸機會之共存媒介傳輸協定
    Other Titles: Wifi and Zigbee coexistence MAC protocol for exploiting Zigbee transmission opportunities
    Authors: 許智舜;Hsu, Chih-Shun
    Contributors: 淡江大學資訊工程學系碩士班
    Keywords: 共存網路;點對點傳輸延遲;干擾;Coexistence Network;Zigbee;WiFi;End-to-end delay;Interference
    Date: 2013
    Issue Date: 2014-01-23 14:38:43 (UTC+8)
    Abstract: 近年來,由於物聯網應用之興起,異質網路的問題越來越受到重視,其中,又以WiFi與ZigBee網路受到最多的關注。在這兩個網路共存的環境中,ZigBee網路處於傳輸弱勢,將會難以傳送資料,這將使緊急事件無法透過ZigBee即時回傳並處理,而耽誤救援的行動。本論文提出一運行於ZigBee與WiFi網路之共存媒介傳輸協定,除了能有效解決兩個網路間的干擾問題外,還針對緊急事件的發生做出應對,以加快緊急資料的傳遞速度。實驗模擬顯示,本論文所提出的協定可有效減少ZigBee與WiFi網路間的干擾行為,並降低ZigBee網路的傳輸延遲。
    The network lifetime of Wireless Sensor Networks (WSNs) highly depends on the remaining energy of each sensor. However, the irregular location and frequency of the event detection leads to different remaining energy of each sensor when all the sensors execute their task for a long time. As a result, some sensor may exhaust its energy, resulting in coverage hole. Therefore, to fully cover the hole, each sensor should move to cover the hole for achieving the purpose of full coverage. Nevertheless, the sensor which has the least energy may exhaust its energy earliest and hence the coverage hole will be created. This paper takes into consideration the remaining energy of each sensor. Then, the proposed Weighted Voronoi Diagram will be constructed for determining each sensor’s monitoring area based on the remaining energy of each sensor to achieve the energy-balancing and full coverage.
    Appears in Collections:[Graduate Institute & Department of Computer Science and Information Engineering] Thesis

    Files in This Item:

    File SizeFormat

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback