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研究生:黃騰誼
研究生(外文):Teng-Yi Huang
論文名稱:透過發射功率調整以改善無線網路定位的準確度
論文名稱(外文):An Improvement of Positioning Accuracy for Outdoor Wireless Network with Power Control
指導教授:簡榮宏簡榮宏引用關係
指導教授(外文):Rong-Hong Jan
學位類別:碩士
校院名稱:國立交通大學
系所名稱:資訊科學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:31
中文關鍵詞:無線網路定位準確度發射功率
外文關鍵詞:wireless networkaccuracypower controlpositioningcell id
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近幾年來由於無線網路的普及以及對於位置相關應用例如E911的蓬勃發展,然而對於定位系統的準確性以及速度上的要求也越來越受重視。目前有許多定位的科技與系統,主要的解決方案可分為三種:用戶為主的定位方法,例如全球定位系統(GPS)、網路為主的定位方法,例如利用與基地台間信號傳遞的時間差(TDOA)和軟體為主的定位方法,例如微細胞識別碼定位(E-CID)。其中以軟體為主的解決方案最為簡單而且所需增加的花費也最少。本篇論文針對軟體為主的定位方法,提出一個計算此一定位系統準確性的演算法,並藉由調整每一基地台的功率,來改善定位的準確性。藉由模擬所得的數據以幫助系統業者對於基地台的功率調校,以期獲得最佳定位的準確性。

Location-based services have been a hot topic for several years. Lots of technologies are addressed in recent years. There are three kinds of solutions for positioning: handset-based, network-based, and software-based solutions. We choose software-based solution to determine user’s location because it is low-cost and simple for network operators or users. In the thesis, we proposed a method to evaluate the accuracy for software-based positioning by calculating the area of segment. Furthermore, we could adjust the power range of base stations in order to improve the accuracy in positioning.

1 Introduction
2 Relative Work
2.1 Wireless Network
2.2 Location Determination
2.3 Mobile Positioining Technology
2.4 Geometry in Circle Intersections
3 Cell ID and Localization Error
3.1 Cell ID Approach
3.2 Positioning Error
3.3 An Approximation method
4 Accuracy Improvement
4.1 Problem Description
4.2 Power Adjustment
4.3 Simulation Results
5 Conclusion

[1] J. Bensche, J. Cooke, E. Job, T. Luke, J. Kvaal, and N.
Swatland, "Investing in The Wireless Location Services Market", Lehman Brothers Report, Sep. 2000.
[2] B. Hofmann-Wellenhof, H. Lichtenegger, and J. Collins, "Global Positioning System: Theory and Practice, 4th ed.", Springer Verlag, 1997.
[3] http://www.cellpoint.com/
[4] http://www.gsmworld.com/
[5] L. Doherty, K. S. J. Pister, and L E. Ghaoui, "Convex Position Estimation in Wireless Sensor Networks", INFOCOM 2001. Proceedings. IEEE, vol.3, pp. 1655-1663, 2001
[6] F. Peyrard, C. Soutou, and J.-J. Mercier, "Mobile stations
localization in a WLAN", Local Computer Networks, 2000. LCN
2000. Proceedings. 25th Annual IEEE Conference, pp. 136 -142
2000.
[7] IEEE Standard Wireless LAN (p802.11-96/49A-49E)
[8] S. Meguerdichian, F. Koushanfar, G. Qu, and M.
PotKonjak,"Exposure In Wireless Ad-hoc Sensor Networks", The
Seventh Annual International Conference on Mobile Computing and
Networking 2001, July 2001.
[9] J. Werb, and C. Lanzl, "Designing a Positioning System for
Finding Things and People Indoors,"IEEE Spectrum, vol. 35,
no. 9, pp. 71-78, Sept. 1998.
[10] P. Bahl, and V. N. Padmanabhan, "Radar: An In-Building
RF-Based User-Location and Tracking System",Proc. IEEE
INFOCOM 2000, Tel Aviv, Israel, vol. 2, pp. 775-84, Mar. 2000.
[11] N. Bulusu, J. Heidemann, and D. Estrin, "GPS-less Low-Cost
Outdoor Localization for Very Small Devices", IEEE Personal
Communications, pp. 28-34, Oct. 2000.
[12] http://www.arundel.net/xplane/html/vor.html
[13] http://www.uswcorp.com/USWCmainpages/our.htm
[14] http://mathworld.wolfram.com/
[15]http://www.ics.uci.edu/~eppstein/junkyard/reuleaux.html
[16]S. Meguerdichian, F. Koushanfar, M. Potkonjak, and M. B.
Srivastava, "Coverage problems in wireless ad-hoc sensor
networks", INFOCOM 2001. Proceedings. IEEE, vol. 3, pp.
1380-1387, 2001.
[17]A. Molina, G.E. Athanasiadou, A. R. Nix, "The automatic
location of base-stations for optimised cellular coverage: a new combinatorial approach", Vehicular Technology Conference,
1999 IEEE 49th}, vol. 1, pp. 606 -610 May 1999

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