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研究生:高明權
研究生(外文):Min-Chuan Kao
論文名稱:改善個人通信服務系統之位址追蹤策略
論文名稱(外文):An Improvement on Location Tracking Strategies for Personal Communication Services
指導教授:劉如生
指導教授(外文):Ru-Sheng Liu
學位類別:碩士
校院名稱:元智大學
系所名稱:電機與資訊工程研究所
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:1999
畢業學年度:87
語文別:中文
論文頁數:57
中文關鍵詞:通信服務系統HLR/VLR 資料庫位址追蹤移動軌跡
外文關鍵詞:PCSHLR/VLRMoving Patterns StrategyLocation Tracking StrategiesPersonal Communication Services
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“Location Tracking Strategies” is an important issue for Personal Communications Services (PCS). Usually, callee’s location may vary from time to time. Therefore, in mobile communications’ environment, the system must keep track of callee’s location all the times to transfer information to the required callee correctly.
This thesis proposes a “Moving Patterns Strategy (MP)” for PCS with the following steps. First, the local system will collect user’s history moving data, find the periodic users through statistic method, and generate the forecasting location for any time period. Then the caller and callee may exchange their forecasting data properly within communications period. Using this strategy, the time for call delivery may be shorted, and overall system’s performance may be prompted due to decreasing the frequencies of querying HLR database.
On the implementation, we will study user’s history moving data, design a general algorithm to figure out its periodic rules. Next, a protocol will be presented to combine MP strategy into PCS. Then, we will simulate our system to verify its functions and possible benefits.

“Location Tracking Strategies” is an important issue for Personal Communications Services (PCS). Usually, callee’s location may vary from time to time. Therefore, in mobile communications’ environment, the system must keep track of callee’s location all the times to transfer information to the required callee correctly.
This thesis proposes a “Moving Patterns Strategy (MP)” for PCS with the following steps. First, the local system will collect user’s history moving data, find the periodic users through statistic method, and generate the forecasting location for any time period. Then the caller and callee may exchange their forecasting data properly within communications period. Using this strategy, the time for call delivery may be shorted, and overall system’s performance may be prompted due to decreasing the frequencies of querying HLR database.
On the implementation, we will study user’s history moving data, design a general algorithm to figure out its periodic rules. Next, a protocol will be presented to combine MP strategy into PCS. Then, we will simulate our system to verify its functions and possible benefits.

書 名 頁 i
英文摘要 ii
目 錄 iv
表 目 錄 vii
圖 目 錄 viii
一、 緒論 1
1.1 研究背景 1
1.2 位址追蹤之問題描述 2
1.1.1 終端設備的可移動性 2
1.1.2 使用者的可移動性 4
二、 背景知識與相關研究 7
2.1 參考模型 7
2.2 相關位址追蹤策略 10
2.2.1 Always-Update 10
2.2.2 Never-Update 12
2.2.3 Fixed Location Area Strategy 14
2.2.4 Fixed Reporting Center Strategy 17
2.2.5 Time-based Update 19
2.2.6 Movement-based Update 21
2.2.7 Distance-based Update, DBLA 23
2.2.8 Forwarding Strategy 25
2.2.9 Multi-layer Strategy 27
2.2.10 Adaptive location tracking strategy 28
2.2.11 Caching Strategy 29
三、 系統設計與架構 31
3.1 研究內容 31
3.2 MOVING PATTERNS之設計 33
3.2.1 資料結構 33
3.2.2 估算MP之演算法 33
3.3 MP LOCATION TRACKING STRATEGY 37
3.3.1 MP策略之位址更新程序 37
3.3.2 MP策略之呼叫程序 38
3.4 PROTOCOLS FOR MP STRATEGY 40
3.4.1 AT Stationary level 40
3.4.2 AT Mobile level 42
四、 系統實作與評量 43
4.1 位址追蹤策略之比較 43
4.1.1 MP vs. FLA Strategy 44
4.1.2 MP vs. Caching Strategy 45
4.2 數值分析 46
4.3 實驗部分 48
4.3.1 MP vs. FLA Strategy 48
4.3.2 MP vs. Caching Strategy 51
五、 結論 53
5.1 結論 53
5.2 未來展望 54
六、 參考資料 55

[1] D. J. Goodman, “Cellular Packet Communications,” in IEEE Trans. On Communications, vol. 38 , pages 1272-1280, 1990.
[2] “Personal Communications Services (PCS) Network Access Service Alternatives.” Issue 1, Bellcore Spec. Rep. SR-NPL-001623, June 1990.
[3] EIA/TIA, “Cellular radio-telecommunications intersystem operations: Automatic Roaming.” EIA/TIA. Tech. Rep. IS-41. 3-B. 1991.
[4] “Network and Operation Plan for Access Services to Personal Communications Services (PCS) Providers.” Bellcore Spec. Rep. SR-TSV-002402, Aug 1992.
[5] M. Mouly and M.-B. Pautet. “The GSM System for Mobile Communications.” Palaiseau, France: M. Mouly, 1992.
[6] S. Tabbanane, “Evaluation of an alternative location strategy for future high density wireless communications systems,” Technical Report WINLAB-TR-51, Rutgers University, 1993.
[7] A. Bar-Noy and I. Kessler, “Tracking Mobile Users in Wireless Communications Networks,” in Proceedings of IEEE Infocom Conference on Computer Communications, pages 1232-1293, 1993.
[8] H. Xie, S. Tabbane and D. J. Goodman, “Dynamic Location Area Management and Performance Analysis,” in Proceedings of IEEE VTC ’93, Secausus, NJ, pages 536-539, 1993.
[9] A. Bar-Noy, I. Kessler and M. Sidi, “Tracking Strategies in Wireless Networks,” in Proceedings of IEEE Information Theory, pages 413, 1994.
[10] S. Madhavapeddy and K. Basu, “Optional Paging in Cellular Mobile Telephone Systems,” in Proceedings of the 14th International Teletraffic Congress, pages 493-502, 1994.
[11] Seshadri Mohan, Ravi Jain. “Two User Location Strategies for Personal Communication System.” IEEE J. Sel. Areas Comm., 1994.
[12] A. Bar-Noy, I. Kessler, “Mobile Users: To Update or not to Update,” in Proceedings of IEEE Infocom Conference on Computer Communications, pages 570-576, 1994.
[13] Ravi Jain, Yi-Bing Lin, Charles Lo, and Seshadri Mohan. “A Caching Strategy to reduce network impacts of PCS.” IEEE J. Sel. Areas Comm., Oct 1994.
[14] K. L. Yeuhg and T. P. Yum, “A comparative Study on Location Tracking Strategies in Cellular Mobile Radio Systems,” in Proceedings of IEEE Globecom, pages 22-28, 1995.
[15] K. Madhow, M. Honig and K. Steiglitz, “Optimization of Wireless Resource for Personal Communications Mobility Tracking,” in IEEE Trans. On Networking, Vol. 3, No. 6, pages 698-707, 1995.
[16] Ravi Jain, Yi-Bing Lin, Charles Lo, and Seshadri Mohan. “A Forwarding Strategy to reduce network impacts of PCS.” IEEE J. Sel. Areas Comm., 1995.
[17] J. Ho, I. Akyilzid, “A Dynamic Mobility Tracking Policy for Wireless Personal Communications Networks,” in Proceedings of IEEE GLOBECOM ’95, Singapore, pages 1-5, 1995.
[18] Yi-Bing Lin and Shu-Yuen Hwang. “Comparing the PCS Location Tracking Strategies.” IEEE Trans. Feb. 1996.
[19] A. Hac and X. Zhou, “A Novel Tracking Strategy for Personal Communication Networks,” in Proceedings of IEEE Universal Personal Communications Record, pages 443-447, 1997.
[20] A. Lombardo, S. Palazzo and M. Tedesco, “A Comparative Study of Tracking Strategies using Directional Mobility Models,” in Proceedings of the 8th IEEE International Symposium, pages 994-998, 1997.
[21] H. Lee and J. Sun, “Multilayered Model Strategy for Optimal Mobile Location Tracking,” in Proceedings of the 8th IEEE International Symposium, pages 1009-1012, 1997.
[22] H. Lee and J. Sun, “Mobile Location Tracking by Optimal Paging Zone Partitioning,” in Proceedings of IEEE Universal Personal Communications Record, pages 168-172, 1997.
[23] Dr. Chi-Chia Hsieh, “Wireless Communications in Taiwan,” in Microwave Conference Proceedings, pages 305-308, 1997.
[24] M. Pinotti and L. Wilson, “On the Problem of Tracking Mobile Users in Wireless Communications Networks,” in Proceedings of IEEE the Third-First Hawaii International Conference, pages 666-671, 1998.

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