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研究生:王上文
研究生(外文):Shang-Weng Wang
論文名稱:多重頻道保留法之GPRS與WLAN數據聯網研究
論文名稱(外文):The Multiple Threshold Channel Reservation Scheme for an Integrated GPRS and WLAN Data Networks
指導教授:馬杰馬杰引用關係
指導教授(外文):Jeich Mar
學位類別:碩士
校院名稱:元智大學
系所名稱:通訊工程學系
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:2004
畢業學年度:92
語文別:中文
論文頁數:66
中文關鍵詞:不同資料傳輸率多重頻道保留頻道共享整體封包無線電服務無線區域網路
外文關鍵詞:multiple data ratemultiple threshold channel reservationcomplete sharingGPRSWLAN
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行動數據網路(GPRS)可以提供相對於無線區域網路(WLAN)較低的資料傳輸速率(100Kbps),但其系統服務範圍卻比WLAN大很多。相反的,WLAN雖然可提供非常高速(11M~54Mbps)的資料傳輸速率,但其系統服務範圍只是區域性的小面積,將兩個系統整合可結合兩者的優點,在各種不同的環境中提供用戶廣泛區域的數據傳輸系統。本論文提出了多重頻道保留(MTCR)架構整合GPRS/WLAN數據網路的分析與模擬,與頻道共享(CS)架構的性能比較。MTCR架構整合網路性能模擬包含用戶移動性、資料率轉換及WLAN涵蓋區域大小等重要因素。
從模擬與分析結果顯示,在MTCR架構下,所有不同傳輸類型之通話會有相同的新通話阻礙機率,且MTCR架構之交遞失敗機率也會比CS架構小。當整合網路加大WLAN涵蓋區域以降低WLAN至GPRS之交遞延遲,用戶可獲得較佳的交遞性能及較高的通達率(Throughput),但是卻會造成WLAN系統較大的系統負載而有較高的阻礙機率。而論文最後以分析結果驗證模擬結果的合理與正確性。

A cellular data network GPRS can provide relatively low-speed data service (100 Kbps) over a large coverage area. On the other hand, WLAN provides high-speed data service (11M~54M bps) over a geographically small area. An integrated network combines the strengths of each, resulting in a wide-area system capable of providing users with ubiquitous data service ranging from low to high data rates in strategic locations. In this thesis, multiple threshold channel reservation (MTCR) scheme is proposed for an integrated GPRS/WLAN network and compared with the complete sharing (CS) scheme. The traffic performance of the integrated GPRS/WLAN network using MTCR and CS schemes are simulated. The data rate transformation, handoff percentage and mobile terminal mobility are considered in the simulations.
The simulation results show that, compared with complete sharing (CS) scheme, the proposed MTCR scheme can provide the same new call blocking probability for different data rate services and lower handoff failure probability for the subscribers in the integrated GPRS/WLAN networks. The overlaid area size is increased to improve the handoff delay from WLAN to GPRS at the expense of higher new call blocking probabilities of the WLAN. The performance analysis results are also used to validate the simulation results.

中文摘要 3
英文摘要 4
目錄 5
圖目錄 7
表目錄 9
符號說明 10
第一章 緒論 12
1.1 研究動機與目的 12
1.2 研究方法 13
1.3 各章提要 13
第二章 GPRS與WLAN數據聯網 14
2.1 GPRS與WLAN數據聯網簡介 14
2.2 GPRS系統與WLAN系統特點描述 15
2.3資料傳輸速率的交遞轉換 18
2.4頻道分配架構: 19
第三章 GPRS與WLAN數據聯網性能參數之分析估算與模擬流程 21
3.1 頻道指派 21
3.2 行動台移動特性 22
3.3 數學模式: 22
3.3.1系統假設 22
3.3.2 參數環境設定 23
3.3.3 訊務量變化矩陣 24
3.3.4 訊務量平衡方程式 25
3.3.5 驅動程序 25
3.3.5.1 轉換機率之發生機率 26
3.3.5.2 進入狀態之機率 31
3.3.6 交遞參數的定義與推導 32
3.4 性能估算: 34
3.4.1 阻礙機率(Blocking Probability) 34
3.4.2 交遞失敗機率(Handoff Failure Probability) 35
3.4.3 系統之通達率(Throughput) 36
3.5 系統模擬流程 37
第四章 GPRS/WLAN數據聯網之模擬與分析結果 40
4.1 頻道共享(CS)架構之數據聯網模擬結果 40
4.2 CS架構與MTCR架構之性能比較 46
4.3 標準MTCR架構與非標準MTCR架構之比較 51
4.4 WLAN系統的涵蓋區域大小之比較 54
4.5 模擬與分析結果比較 58
第五章 結論 62
參考文獻 64

[1] Robert Berezdivin, Robert Breinig, and Randy Topp, Raytheon., ”
Next-Generation Wireless Communications Concepts and Technologies”, IEEE Communication Magazine Vol. 40, pp. 108~116, March 2002
[2] Angela Doufexi, Eustace Tameh, Andrew Nix, Simon Armour and Araceli Molina,
“Hotspot Wireless LANs to Enhance the Performance of 3G and Beyond Cellular
Networks”, IEEE Communication Magazine Vol. 41, pp. 58~65, July 2003.
[3] Salkintzis, A.K.; Fors, C.; Pazhyannur, R. “WLAN-GPRS Integration for Next-Generation Mobile Data Networks”, IEEE Wireless Communication, pp. 112-124, October 2002.
[4] De Vriendt, J.; Laine, P.; Lerouge, C.; Xiaofeng Xu, “Mobile Network Evolution: A
Revolution on the Move”, IEEE Communication Magazine, April 2002.
[5] Ylianttila, M.; Pichna, R.; Vallstrom, J.; Makela, J.; Zahedi, A.; Krishnamurthy, P.; Pahlavan, K., “Handoff Procedure Heterogeneous Wireless Networks”, IEEE Global Telecommunications Conference, 1999. GLOBECOM '99, Vol. 5, pp. 2783 -2787, 5-9 Dec. 1999.
[6] K. Pahlavan,P. Krishnamurthy,A. Hatami,M. Ylianttila,J. Makela,R. Pichna,J.
Vallstrom, “Handoff in Hybrid Mobile Data Networks”, IEEE Personal Communications Magazine, Vol. 7, No.2, pp.34-47, April 2000.
[7] M.Ylianttila, M Pande, J. Mahonen, “Optimization Scheme for Mobile Users Performing Vertical Handoffs between IEEE 802.11 and GPRS/EDGE Networks” Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE , Vol. 6, pp. 3439 - 3443, 25-29 Nov. 2001.
[8] Stefan Aust, Daniel Proetel, ”Design Issues of Mobile IP Handoffs between General Packet Radio Service(GPRS) Networks and Wireless LAN(WLAN) Systems” IEEE. The 5th International Symposium on Wireless Personal Multimedia Communications, Vol. 2, pp. 868-872, Oct. 27-30, 2002.
[9] Hong-Yon Lach, Christophe Janneteau, and Alexandru Petrescu, “Network Mobility in Beyond-3G Systems”, IEEE Communication Magazine, Vol. 41, pp. 52~57, July 2003.
[10] V.R. Kolavennu, S. S. Rappaport et al., " Traffic Performance Characterisation of a Personal Radio communication System," Proc. Inst. Elec. Eng., Vol. 133, pt. F, pp. 550-561, Oct 1986.
[11] A. Alan B. Pritsker, Jean J. O’Reilly, “Simulation with Visual SLAM and AweSim” 2nd edition, January 1999.
[12] S.S Rappaport,”Blocking, Hand-off and Traffic Performance for Cellular Communication System with Mixed Plat-forms”, IEE Proc., part I, Commun., Speech and Vision, vol. 45, Issue 5, pp. 389-401, Oct. 1993.
[13] Lizhong Li, Bin Li, Bo Li, Xi-Ren Cao, “Performance Analysis of Bandwidth Allocations for Multi-Services Mobile Wireless Cellular Networks”, IEEE Wireless Communications and Networking. WCNC, vol. 2, pp. 1072-1077, Mar. 2003.
[14] Epstein, B.; Schwartz, M., ” Reservation Strategies for Multi-media Traffic in a Wireless Environment” Vehicular Technology Conference, 1995 IEEE 45th , Vol. 1 ,pp. 165 -169, 25-28 July 1995.
[15] Phone Lin and Yi-Bing Lin, “Channel Allocation for GPRS” IEEE Transactions on Vehicular Technology, vol. 50, no. 2, pp. 375-387, Mar. 2001.
[16] William Stallings, “Data and Computer Communications, 7th edition” Chapter 7, page 553-555.
[17] D. Hong and Rappaport S.S., “Traffic Model and Performance Analysis for Cellular Mobile Radiotelephone Systems with Prioritized and Nonprioritized Handoff Procedures,” IEEE Transactions on Vehicular Technology, vol. VT-35, no. 3, pp. 77-92, Aug. 1986.
[18] James F. Kurose, Keith W. Ross, “Computer Networking--A Top-Down Approach Featuring the Internet, 2nd edition ” Chapter 1, pp. 20-21, 2003.

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