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姓名 朱哲民(Che-min Chu) 查詢紙本館藏 畢業系所 通訊工程學系 論文名稱 降低感知無線電頻率交遞所需時間之頻譜管理機制
(Spectrum Management Scheme To Reduce Spectrum Handoff Time)相關論文 檔案 [Endnote RIS 格式] [Bibtex 格式] [相關文章] [文章引用] [完整記錄] [館藏目錄] [檢視] [下載]
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摘要(中) 隨著無線網路技術的不斷進步,人們對無線網路的需求與使用度大幅的增加,然而,可用的頻譜資源並沒有相對地增加,於是相對地,頻譜變得越來越稀少、珍貴。美國聯邦通訊委員會(FCC)和電機電子工程師學會(IEEE)有鑑於此問題的嚴重性與迫切性,均開始發展感知無線電網路技術並制定其規格,希望能藉此提高頻譜的使用效率,同時增加系統的總傳輸量。
感知無線電的使用者可以在不影響授權的使用者的情況下使用其頻譜。當授權的使用者要使用其頻譜時,感知無線電的使用者則需歸還此資源。為了繼續用無線網路傳輸資料,感知無線電的使用者會更換其傳輸的頻率,此頻率交遞的過程所花的時間會讓使用者的服務有所停頓。為了讓使用者的服務品質更好、達到更佳的無縫交遞,本論文提出一種頻譜管理和頻率交遞的機制,以降低頻率交遞所需的時間,達到更好的服務品質。
摘要(英) As the developing of science and technology, the need of wireless network is becoming huger. However, the spectrum resources do not increase, therefore, the spectrum resources in contract become rarer. In considering of the seriousness and the urgency of this problem, FCC and IEEE start to develop Cognitive Radio Technology and make the standards, hoping to use this new technology to increase not only the utilization of spectrum but also the total throughput of the system.
Cognitive Radio Users can use the spectrum under the circumstances that they do not influence Licensed Users. When Licensed Users need to use the spectrum, Cognitive Radio Users should release the resources. In order to continue wireless network transmission, Cognitive Radio Users would change their transmission frequency, the time spent in spectrum handoff would break the user’s transmission. In this thesis, a spectrum management and spectrum handoff scheme is proposed to reduce spectrum handoff time for better QoS.
關鍵字(中) ★ 感知無線電 關鍵字(英) ★ cognitive radio 論文目次 摘要..........................................................I
Abstract.....................................................II
致謝........................................................III
目錄.........................................................IV
第一章 緒論..................................................1
1-1 前言.................................................1
1-2 研究動機.............................................2
1-3 論文架構.............................................4
第二章 相關研究背景..........................................5
2-1 感知無線電網路技術概論...............................5
2-1-1 感知無線電網路技術應用.........................6
2-1-2 感知無線電功能.................................7
2-2 IEEE 802.22.........................................11
2-2-1 實體層.........................................12
2-2-2 媒體存取控制層.................................14
2-2-3 IEEE 802.22 與其它系統之共存...................15
第三章 頻譜管理與頻率交遞機制...............................17
3-1 架構................................................17
3-2 頻譜管理與頻率交遞機制..............................17
3-3 運作說明............................................20
3-3-1 感知無線電使用者出現..........................20
3-3-2 主要使用出現..................................21
3-3-3 感知無線電使用者離開..........................22
3-3-4 主要使用者離開................................23
第四章 模擬與分析...........................................24
4-1 參數說明............................................24
4-2 流程................................................24
4-3 數據分析............................................28
第五章 結論.................................................34
參考文獻.....................................................35
參考文獻 [1] 鄭延修, “感知無線網路的機會與挑戰,” 電信國家型科技計畫簡訊,September 2008,Page(s):17 – 21.
[2] Joseph Mitola III and Gerald Q. Maguire, “Cognitive Radio: Making Software Radios More Personal,” IEEE Personal Communications, August 1999, Page(s):13 – 18.
[3] K. Takeuchi, T. Fukuhara, S. Nomura and S. Yamamoto, “Cognitive Radio Using Multi-transmission Links,” Proceedings of 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (Crown-Com 2007), Orlando, USA, 31 Jul.-03 August. 2007.
[4] 林宗男, “感知無線電環境之頻譜共享,” 中華電信專題講座, February 2009.
[5] Ian F. Akyildiz, Won-Yeol Lee, Mehmet C. Vuran, Shantidev Mohanty, “NeXt Generation/Dynamic Spectrum Access/Cognitive Radio Wireless Networks: A Survey,” Computer Networks, Vol. 50, 2006, Page(s):2127 - 2159.
[6] Stevenson, C. Chouinard, G. Zhongding Lei, Wendong Hu Shellhammer, S. Caldwell, W. “IEEE802.22: An Introduction To The First Wireless Standard Based On Cognitive Radio,” IEEE Communications Magazine, Volume 47, Issue 1, January 2009 , Page(s):130 – 138.
[7] Carlos Cordeiro, Kiran Challapali, and Dagnachew Birru, “IEEE 802.22: An Introduction To The First Wireless Standard Based On Cognitive Radios,” JOURNAL OF COMMUNICATIONS, VOL. 1, NO. 1, APRIL 2006.
[8] Xiaorong Zhu, Lianfeng Shen, and Tak-Shing Peter Yum , “Analysis Of Cognitive Radio Spectrum Access With Optimal Channel Reservation,” IEEE COMMUNICATIONS LETTERS, VOL. 11, NO. 4, APRIL 2007.
指導教授 吳中實(Jung-shyr Wu) 審核日期 2010-7-22 推文 facebook plurk twitter funp google live udn HD myshare reddit netvibes friend youpush delicious baidu 網路書籤 Google bookmarks del.icio.us hemidemi myshare