| 研究生: |
鄭姿伶 Zheng, Zi-Ling |
|---|---|
| 論文名稱: |
電波監測系統之頻寬需求探討 The Bandwidth Requirements of Radio Monitoring System |
| 指導教授: |
陳文字
Chen, Wen-Tzu |
| 學位類別: |
碩士 Master |
| 系所名稱: |
管理學院 - 電信管理研究所 Institute of Telecommunications Management |
| 論文出版年: | 2012 |
| 畢業學年度: | 100 |
| 語文別: | 中文 |
| 論文頁數: | 42 |
| 中文關鍵詞: | 電波監測系統 、頻寬需求 |
| 外文關鍵詞: | Radio monitoring system, bandwidth requirements |
| 相關次數: | 點閱:130 下載:3 |
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電波監測系統中有固定、行動及可運載式三種監測站,三種監測站各有其所需執行之電波監測任務,而監測任務之訊號類型不盡相同,傳輸之資料量不同,也因此所需之頻寬亦不同。本研究針對各類型監測站執行之電波監測任務時所產生的資料數據,記錄其所需存入頻譜資料庫之資料欄位,並藉由各資料欄位所產生之資料量數據來探討監測站至區域管理中心之間資料傳輸鏈路所需之頻寬需求,以及區域管理中心連接VPN時所需之對外頻寬。
由研究結果得知,固定監測站執行之任務中,訊號分析與辨識任務之量測原始資料過大,建議可於監測站購置具數位解調變功能之接收機,以降低傳輸的負荷量。若不考慮訊號分析與辨識任務,固定監測站所需執行任務之需求傳輸速率最大的為夜間資料傳輸任務之1.25Mbps,因此,固定監測站應選擇傳輸速率為2Mbps之FTTB或ADSL。
區域管理中心與行動監測站及可運載式監測站之間是藉由無線網路做連結,從研究結果得知,行動監測站所需執行任務之需求傳輸速率最大的為覆蓋範圍量測之0.31Mbps,因此,行動監測站應選擇使用傳輸速率為0.384Mbps以上之UMTS無線網路。而可運載式監測站所需執行任務之需求傳輸速率最大的為訊號測量之0.425Mbps,因此,可運載式監測站選擇使用理論傳輸速率為5.76Mbps之HSUPA無線網路才可滿足監測之需求。另外,各區域管理中心之對外頻寬,選擇FTTB之1Gbps傳輸速率的網路類型,就可滿足監測時的需求。
There are three types of monitoring stations in radio monitoring systems; each type of stations has to execute different monitoring tasks. Each signal type has its own characteristic and the data needed to be sent. Thus, the required bandwidths of different monitoring tasks are different. This research uses the amount of data which occur in executing monitoring task to calculate the bandwidth requirement between remote monitoring stations and regional centers.
According to the results of this research, the raw data for signal analysis and identification task is too large. It is recommended that the remote monitoring station can be equipped with receivers which have digital demodulation functions to reduce the transmission load. Except the signal analysis and identification task, the maximal bandwidth requirement of fixed monitoring stations is 1.25Mbps which occur in data transmission task for the night. Therefore, fixed monitoring stations should select transmission rate of 2Mbps of FTTB or ADSL.
The biggest bandwidth requirement of mobile monitoring stations is 0.31Mbps which produced by transmitter coverage measurement. Thus, mobile monitoring stations should use the transmission rate up to 0.384Mbps UMTS wireless network. The highest bandwidth requirement of transportable monitoring stations is 0.425Mbps which occur in signal measurement. Therefore, transportable monitoring stations should select theoretical transmission rate of 5.76Mbps HSUPA wireless network. Besides, transmission rate of 1Gbps of FTTB can satisfy the bandwidth requirement between the regional center and control center.
【中文部份】
[1] 國家通訊傳播委員會(NCC),「淺談行動監測車之應用」,NCC News,第4卷13期,12-14頁,民100。
[2] 交通部電信總局,「電信自由化政策白皮書」,交通部,民91。
[3] 國家通訊傳播委員會(NCC)中區監理處,「健全無線通訊環境,建置網路輔助電波監測系統」,國家通訊傳播委員會,民99。
[4] 國家通訊傳播委員會資源管理處,「我國電波監測系統介紹」,民98。
[5] 中華電信ADSL產品說明,http://www.cht.com.tw/enterprise/adsl.html
[6] 中華電信FTTB產品說明,http://www.cht.com.tw/enterprise/bn-fttb-rate.html
[7] 台灣羅德史瓦茲無線電監測產品介紹, http://www2.rohde-schwarz.com/en/products/radiomonitoring/.
[8] 安捷倫,「N9340B手持式頻譜分析儀技術概覽」,民97。
【英文部份】
[9] ITU-R, "Handbook on Spectrum Monitoring", 2011.
[10] ITU-R, SM.854-2, " Direction finding and location determination at monitoring stations",2007.
[11] ITU-R, SM.1536, " Frequency channel occupancy measurements",2001.
[12] ITU-R, SM.1600, "Technical identification of digital signals ",2002.
[13] ITU-R, SM.1541-2, " Unwanted emissions in the out-of-band domain",2006.
[14] ITU-R, SM.1447, "Monitoring of the radio coverage of land mobile networks to verify compliance with a given licence",2000
[15] Rohde & Schwarz, "Transportable Monitoring and Direction Finding Systems R&S TMS100/R&S TMS200", 2002.
[16] ITU, " Computer-aided Techniques for Spectrum Management (CAT)", 2005.
[17] IEEE Std. 802.16m™-2011. "IEEE Standard for Local and metropolitan area networks - Part 16: Air Interface for Broadband Wireless Access Systems, Amendment 3: Advanced Air Interface".
[18] James E. Goldman, Phillip T. Rawles , "Applied data communications : a business-oriented approach", 4th ed, Hoboken, NJ : Wiley, 2004.
[19] Klemm, A. et al, 2001. "Traffic Modelling and Characterization for UMTS Networks. ", Proc. IEEE Globecom 2001, San Antonio Texas, November 2001.
[20] Mariusz Glabowski, Slawomir Hanczewski, Maciej Stasiak, "Available Bandwidth for HSDPA and HSUPA Services", ICT-MICC 2007, 2007.
[21] Behrouz A. Forouzan, "Data Communications and networking",4th ed, McGraw-Hill,2007.