English  |  正體中文  |  简体中文  |  Items with full text/Total items : 75533/75533 (100%)
Visitors : 27264431      Online Users : 297
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU 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://ir.lib.ncu.edu.tw/handle/987654321/8376

    Title: 基於模糊邏輯之頻譜資源分享用於IEEE 802.22無線網路跨基地台共存機制;Fuzzy Logic based spectrum sharing for Inter-BS Coexistence Mechanism in IEEE 802.22 WRAN
    Authors: 林強生;JOHNSON LIN
    Contributors: 通訊工程研究所
    Keywords: 模糊邏輯;CBP協定;無線區域網路;感知無線電;Cognitive Radio;WRAN;CBP;Fuzzy Logic
    Date: 2008-07-13
    Issue Date: 2009-09-22 11:24:01 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 這些年來隨著無線多媒體應用的增加,無線網路的技術不斷更新,頻譜資源利用情況則原地踏步,使得無線頻譜越來越缺乏,包括美國電機電子工程師學會(IEEE)和美國聯邦通訊委員會(FCC),都已朝向感知無線電網路技術發展及制定規格,希望藉由感知無線電網路技術能對頻譜資源做進一步的整合與管理,來達到頻譜資源的分享。 本論文藉由IEEE 802.22提出的CBP協定,攜帶動態的資源租賃的訊息,以解決跨基地台之間無線電資源管理,基於模糊邏輯控制有效的作資源的估測與分配無線電資源,並考量到三種訊務,分別為聲音、影像和資料,動態調整系統的可用資源,以提升無線電資源的利用率,達到頻譜資源分享的目的。採用模糊邏輯控制的原因為,其擴充性高,且運作過程不複雜,模糊邏輯規則可以依據經驗法則作參數的微調,隨時可以動態的改善情況,使系統達到有效的資源管理。 The increasing of wireless multimedia application and the wireless network technology has significant progress in recent years. The inefficient spectrum resource utilization makes spectrum resources exhaust gradually. In order to satisfy growing demands for spectrum resources, IEEE are currently developing wireless network standards related to the cognitive radio network technology for the integration and management of radio resources to improve spectrum resource utilization to achieve the objective of spectrum sharing. This thesis follow IEEE 802.22 proposed coexistence beacon protocol (CBP), the mechanism carry the information of dynamic resource renting and offering to solve the problem of spectrum sharing for inter-BS (Base Station) coexistence mechanism. The proposed fuzzy logic based algorithm considering three kinds of traffic, voice, video and data respectively, can meet the dynamic management of radio resources to improve spectrum resource utilization. Due to high flexibility and low complexity, fuzzy rules based on empirical laws can dynamically adjust parameters to control the radio resources. The fuzzy logic control (FLC) spectrum sharing for Inter-BS coexistence mechanism is chosen to make effective utilization of resources in IEEE 802.22 WRAN.
    Appears in Collections:[通訊工程研究所] 博碩士論文

    Files in This Item:

    File SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 隱私權政策聲明