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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 闕志達(Tzi-Dar Chiueh) | |
dc.contributor.author | Ching-Ting Huang | en |
dc.contributor.author | 黃敬婷 | zh_TW |
dc.date.accessioned | 2021-06-15T05:47:21Z | - |
dc.date.available | 2012-09-01 | |
dc.date.copyright | 2010-08-20 | |
dc.date.issued | 2010 | |
dc.date.submitted | 2010-08-19 | |
dc.identifier.citation | [1] IEEE 802.11, IEEE Standard for Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, Nov. 1999.
[2] Bluetooth SIG, Specification of the Bluetooth System: Version 2.0 + EDR, Nov. 2004. [3] Bluetooth SIG, http://www.bluetooth.com/Chinese/SIG/Pages/default.aspx. [4] IEEE P802.11 97/96, “Tentative Criteria for Comparison of Modulation Methods,” Sep. 1997. [5] Francis J. Smith, “Interference Mitigation of Signals Within the Same Frequency Spectrum,” U.S. Patent 2009/0190633, July, 2009. [6] C. F. Chiasserini and R. R. Rao, “A comparison between collaborative and non-collaborative coexistence mechanisms for interference mitigation in ISM bands,” in Proc. of IEEE Conf. on Vehicular Technology, Rhodes, Greece, May 2001, pp. 2187-2191. [7] Y.-K. Kwok, and M.C.-H. Chek, “Design and evaluation of coexistence mechanisms for Bluetooth and IEEE 802.11b systems,” in Proc. of the 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Barcelona, Spain, Sept. 2004, pp. 1767-1771. [8] L. Ophir, Y. Bitran, and I. Sherman, “Wi-Fi (IEEE 802.11) and Bluetooth coexistence: issues and solutions,” in Proc. of the 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Barcelona, Spain, Sept. 2004, pp. 847-852. [9] N. Golmie, N. Chevrollier, and O. Rebala, “Bluetooth and WLAN coexistence: challenges and solutions,” IEEE Trans. on Wireless Communications, Vol.10, No. 6, pp. 22-29, Dec. 2003. [10] C.D.M. Cordeiro, S. Abhyankar, R. Toshiwal, and D.P. Agrawal, “A novel architecture and coexistence method to provide global access to/from Bluetooth WPANs by IEEE 802.11 WLANs,” in Proc. of IEEE Conf. on Performance, Computing, and Communications, Phoenix, Arizona, U.S.A., April, 2003, pp. 23-30. [11] P. Desai, S. Jerlhagen, B. Ibrahim, S. Mak, A. Grushkevich, and J. AWalley, “Fast and reliable channel clasification algorithms in Bluetooth networks to detect and avoid 2.4GHz interferers,” U.S. Patent 2008/0219323, September, 2008. [12] A.K. Arumugam, P.N. Fletcher, A.R. Nix, and S.M.D. Armour, “Interference mitigation proposals exploiting antenna diversity using space time block codes for Bluetooth enabled devices,” in Proc. of IEEE Conf. on Vehicular Technology, Vancouver, Canada, Sept. 2002, pp. 256-260. [13] K. Premkumar and S.H. Srinivasan, “Diversity techniques for interference mitigation between IEEE 802.11 WLANs and Bluetooth,” in Proc. of the 16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Berlin, Germany, Sept. 2005, pp. 1468-1472. [14] J. Li, X. Liu, “A Frequency Diversity Technique for Interference Mitigation in Coexisting Bluetooth and WLAN,” in Proc. of IEEE Conf. on Communications, Glasgow, Scotland, Jun. 2007, pp. 5490-5495. [15] G. L. Sugar, W. R. Seed, and Y. Tesfai, “System and method for interference mitigation among multiple WLAN protocols,” U.S. Patent 2002/0061031, May, 2002. [16] M. Nafie, T. M. Schmidl, and G. D. Anand, “Interference cancellation of a narrow band interferer in a wide band communication device,” E.P. Patent 1176731, March, 2005. [17] A.K. Arumugam, A. Doufexi, A.R. Nix, and P.N. Fletcher, “An investigation of the coexistence of 802.11g WLAN and high data rate Bluetooth enabled consumer electronic devices in indoor home and office environments,” IEEE Trans. on Consumer Electronics, Vol.49, No. 3, pp. 587-596, Aug. 2003. [18] M. Ghosh and V. Gaddam, “Bluetooth interference cancellation for 802.11g WLAN receivers,” in Proc. of IEEE Conf. on Communications, Anchorage, Alaska, U.S.A, May 2003, pp. 1167-1173. [19] J. Li, X. Liu, and X. Ma, “Dual Channel Transmission for Coexistence of Bluetooth Piconets with Multi-Slot Packets,” in Proc. of the 2nd IEEE International Symposium on Wireless Pervasive Computing, San Juan, Puerto Rico, Feb. 2007. [20] M. Ghosh and V. Gaddam, “Joint Channel And Noise Variance Estimation In A Wideband OFDM System,” U.S. Patent 7,352,730, April, 2008. [21] V. Houtum and W. Johannes, “Method for cancelling a narrow-band interference signal,” U.S. Patent 7,392,031, June, 2008. [22] M. Nafie, T. M. Schmidl, and G. D. Anand, “Interference cancellation of a narrow bank interferer in a wide band communication device,” U.S. Patent: 2006/0,215,795, September, 2006. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/47092 | - |
dc.description.abstract | 無線區域網路與藍牙系統為目前兩大無線通訊網路標準。無線區域網路透過存取點(Access Point)連接到有線區域網路進行資料傳輸,具有行動性高、安裝簡便、施工成本低、應用範圍廣等優點;藍牙透過裝置即可建立傳輸通道,容易整合與連結各種通訊、資訊設備進行低成本、低耗電之短距離無線傳輸。兩系統之應用不同,具不可取代性,目前皆被廣泛使用於消費性電子產品中。
然而無線區域網路IEEE 802.11g與藍牙同樣使用2.4 GHz的ISM頻帶,當兩系統同一時間將訊號載至相同頻帶時,必然產生互相干擾,造成傳輸錯誤,此即兩系統於ISM頻帶的共存問題。過去的文獻與研究中多以避開兩系統於時域或頻域的同時運作(collision avoidance)來解決,必須犧牲位元傳輸率(throughput)或頻譜效益(spectral efficiency)。為更進一步以不避開碰撞、更主動基本的方式來解決ISM共存問題,本論文提出共同偵測器的想法,透過無線區域網路Wi-Fi與藍牙訊號的同時偵測,降低彼此干擾情況,進而提供更好的無線傳輸品質與服務。 共同偵測器應用於無線區域網路基頻接收機內,使用最大似然法則(ML, Maximum Likelihood)演算法,透過已建立的藍牙頻譜資料庫與雜訊特性,全面搜尋所有可能的Wi-Fi與藍牙頻域訊號,一旦搜尋到最有可能的組合,即宣稱找到目前接收的Wi-Fi與藍牙,並將藍牙由接收訊號中扣除以降低干擾。研究最後針對完美通道資訊假設下的模擬環境與實際共存系統中經通道估測的模擬環境做共同偵測器之效能驗證。 | zh_TW |
dc.description.abstract | Currently, wireless local area network (Wireless LAN) and Bluetooth are two important standards in the wireless communication network. They are broadly used and are irreplaceable. However, IEEE 802.11g in Wireless LAN and Bluetooth both utilize 2.4 GHz ISM band. Mutual interference occurs while the two systems modulate signals to the same spectrum at the same time. This is so-called the ISM coexistence issue. The general solution is to avoid simultaneous system operation in the time or frequency domain. By doing this, the throughput and spectral efficiency are sacrificed for the collision avoidance. Therefore, joint detection is proposed as a better solution to jointly detect Wi-Fi and Bluetooth in order to reduce the interference.
Maximum likelihood is applied in joint detection to search all possible Wi-Fi and Bluetooth signal through a built-in Bluetooth library. As the most likely Bluetooth is found, it is subtracted from the received signal to reduce the interference. The simulation results under different simulation environments: with perfect channel state information (CSI) knowledge and considering the real coexistence environment are proposed to show the effectiveness of the joint detector dealing with ISM coexistence. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T05:47:21Z (GMT). No. of bitstreams: 1 ntu-99-R97943039-1.pdf: 3571705 bytes, checksum: e36eeefdfe03a66a434d99113941c7ce (MD5) Previous issue date: 2010 | en |
dc.description.tableofcontents | 口試委員會審定書
誌謝 摘要 ABSTRACT 目錄 I 圖目錄 III 表目錄 VI 第一章 緒論 1 1.1 研究背景 1 1.2 研究動機 2 1.3 ISM共存問題之相關文獻 2 1.4 論文組織 4 第二章 共存系統與規格 5 2.1 共存系統架構 5 2.2 藍牙基頻傳送機 6 2.2.1 系統簡介 6 2.2.2 封包格式 7 2.2.3 跳頻選擇 11 2.2.4 基礎傳輸速率藍牙傳送機架構 12 2.3 無線區域網路IEEE802.11g基頻傳送機 16 2.3.1 系統簡介 16 2.3.2 封包格式 17 2.3.3 傳送機架構 18 2.4 通道模型 23 2.4.1 功率延遲分佈 24 2.4.2 多重路徑瑞雷衰減通道 25 2.4.3 加成性白色高斯雜訊 26 第三章 完美通道資訊假設下共同偵測器之設計 27 3.1 一般無線區域網路基頻接收機架構 27 3.1.1 快速傅立葉轉換 28 3.1.2 單階等化器 28 3.1.3 資料解調器 29 3.1.4 反交錯器 29 3.1.5 迴旋解碼器 30 3.2 完美通道資訊假設 31 3.3 共同偵測器演算法 32 3.4 藍牙頻譜資料庫 34 3.4.1 藍牙與無線區域網路訊號重疊情形 34 3.4.2 五符元藍牙頻譜資料庫 36 3.4.3 資料庫之擴展 38 3.4.4 資料庫之簡化 41 3.5 共同偵測器流程 43 3.5.1 共同偵測器流程 43 3.5.2 降頻與資料庫相位補償 45 3.5.3 實際藍牙調變與資料庫相位補償 46 3.6 改良式ISM共存偵測器流程 49 3.7 系統表現與模擬結果 51 3.7.1 模擬環境 51 3.7.2 模擬結果 52 3.8 運算複雜度比較 59 第四章 實際共存系統中ISM共存偵測器之設計 61 4.1 ISM共存偵測器之發展 61 4.2 通道資訊估測 65 4.2.1 藍牙跳頻頻率 65 4.2.2 藍牙訊號振幅估測 67 4.2.3 藍牙訊號相位估測 70 4.2.4 模擬結果統整 74 第五章 結論與展望 76 參考文獻 77 | |
dc.language.iso | zh-TW | |
dc.title | 適用於無線區域網路與藍芽共存系統中共同偵測器之設計 | zh_TW |
dc.title | ISM Coexistence of Bluetooth and Wireless LAN Using Joint Detection | en |
dc.type | Thesis | |
dc.date.schoolyear | 98-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 吳安宇(An-Yeu Wu),黃元豪(Yuan-Hao Huang),蘇炫榮(Hsuan-Jung Su) | |
dc.subject.keyword | 無線區域網路,IEEE 802.11g,藍牙,ISM共存系統,干擾消除,共同偵測器, | zh_TW |
dc.subject.keyword | Wireless LAN,IEEE802.11g,Bluetooth,ISM Coexistence,Interference Cancellation,Joint Detector, | en |
dc.relation.page | 79 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2010-08-19 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
顯示於系所單位: | 電子工程學研究所 |
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