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研究生:陳嘉隆
研究生(外文):Chia-Lung Chen
論文名稱:第三代行動通訊系統中多媒體頻寬服務品質保證機制之研究
論文名稱(外文):A Study of Multimedia Bandwidth QoS Provisioning for 3G Mobile Networks
指導教授:施東河施東河引用關係
指導教授(外文):Dong-Her Shih
學位類別:碩士
校院名稱:國立雲林科技大學
系所名稱:資訊管理系碩士班
學門:電算機學門
學類:電算機一般學類
論文種類:學術論文
畢業學年度:92
語文別:中文
論文頁數:87
中文關鍵詞:第三代行動通訊正交可變展頻係數通道碼服務品質資源剩餘率頻寬飽和率頻寬飽和度
外文關鍵詞:Quality of ServiceResource Availability Ratesaturated ratioOrthogonal Variable Spreading Factor codethe third generation mobile communicationsaturation degree
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IMT-2000在第三代行動通訊中制定了WCDMA標準,提出了正交可變展頻係數通道碼(OVSF codes)這技術,而OVSF code產生出不同長度的通道碼,來滿足不同頻寬需求的使用者,因此擁有可對服務提供不同傳輸速度這項優點,這對最近新起的多媒體應用來說可是相當重要。而目前在這研究領域中,有兩個重要的議題為通道碼分配與重配,因為不恰當的頻寬配置會導致編碼樹的破碎,而使得阻斷新使用者進入系統的情形發生,因此OVSF code分配與重配的目的在最小化系統的阻斷率。在本研究中一個新參數為資源剩餘率RA,此參數可評估系統資源利用情況。而本研究將RA與學者提出的SD、SR進行結合,提出一套有效的OVSF code管理方法與四個門檻值。在最後的模擬實驗中,可證明本研究所提出的方法在阻斷率與系統使用率上是優於其他學者的方法。
Orthogonal variable spreading factor (OVSF) codes have been proposed as the channelization codes used in the wideband CDMA access technology of IMT-2000. OVSF codes have the advantages of supporting variable bit rate services, which is important to emerging multimedia applications. Two important issues in such an environment are the code placement problem and code replacement problem. The objective of OVSF code placement and replacement algorithms are to minimize the probability of code request denial due to inappropriate resource allocation. In this paper, we propose a new QoS parameters, Resource Availability Rate (RA), which estimate remnant system resources. We combine there QoS parameters Resource Availability Rate (RA), saturated ratio (SR), saturation degree (SD), propose an efficient OVSF code management scheme and four threshold. Simulations reveal that our algorithms outperform than other algorithms in terms of in the probability of request denial and system resources utility rate.
中文摘要 i
英文摘要 ii
誌謝 iii
目錄 iv
表目錄 vi
圖目錄 vii
一、緒論 1
1.1研究背景 1
1.2 研究動機 4
1.3研究目的 6
1.4研究流程 7
二、文獻探討 9
2.1第三代行動通訊系統之探討 9
2.1.1第三代行動通訊系統標準演進 9
2.1.2第三代行動通訊系統技術特性 13
2.2 WCDMA/UMTS的服務品質之探討 15
2.3無線網路Qos相關研究之探討 18
2.4 OVSF通道碼機制 25
三、研究架構 29
3.1調適性頻寬滿意度量機制 29
3.2 OVSF通道碼管理策略 33
3.3 多媒體寬頻服務品質保證機制 36
3.3.1資料傳輸類型 36
3.3.2系統流程架構 37
3.3.3允入控制演算法CAC (Call Admission Control Algorithm) 39
3.3.4分配演算法CPA (Call Placement Algorithm) 41
3.3.5重配演算法CRA (Call Replacement Algorithm) 49
四、系統模擬 59
4.1系統環境與參數 59
4.2實驗設計 62
4.2.1實驗結果1 63
4.2.2實驗結果2 67
五、結論與未來研究 71
5.1結論 71
5.2研究限制 72
5.3未來研究方向 73
參考文獻 74
1.F. Adachi, M. Sawahashi, K. Okawa, 1997, “Tree-Structured Generation of Orthogonal Spreading Codes with Different Length for Forward Link of DS-CDMA Mobile Radio”, Elect. Lett., vol. 33, no. 1, pp. 27–28, Jan
2.R. Assarut, K. Kawanishi, U. Yamamoto, Y. Onozato, M. Matsushita, 2001, “Region Division Assignment of Orthogonal variable-spreading-factor code in W-CDMA”, IEEE Vehicular Technology Conference, vol. 3, pp. 1884-1888
3.D. Ayyagari, A. Ephremides, 1999, “Admission Control with Priorities: Approaches for multi-rate wireless systems”, Mobile Network and Applications, vol.4 pp. 209-218
4.C. M. Chao, Y. C. Tseng, L. C. Wang, 2003, “Reducing Internal and External Fragmentations of OVSF Codes in WCDMA Systems with Multiple Codes” , IEEE Wireless Communications and Networking, Volume:1, pp.16-20, March
5.W. T. Chen, Y. P. Wu, H. C. Hsiao, 2001, “A Novel Code Assignment Scheme for W-CDMA Systems”, IEEE 54th Vehicular Technology Conference, vol. 2, pp. 1182-1186
6.S. Cheng, C. Chen, I. Chen, 2000, “Dynamic Quota-based Admission Control with Sub-rating in Multimedia Servers”, ACM/Springer Multimedia Systems Journal, vol. 8, no. 2, pp. 83-91
7.R. Cheng, P. Lin, 2000, “OVSF Code Channel Assignment for IMT-2000”, IEEE Vehicular Technology Conference, vol. 3, pp. 2188-2192
8.C. T. Chou, K. G. Shin, 2004, “Analysis of Adaptive Bandwidth Allocation in Wireless Networks with Multilevel Degradable Quality of Service”, IEEE Transactions on Mobile Computing, vol. 3, no. 1, pp. 5-17, Jan
9.E. Dahlman, B. Gudmundson, N. Nisson, J. Skold, 1998, “UMTS/IMT2000 based on wideband CDMA”, IEEE Communication Magazine, vol. 36, pp.70-80
10.S. K. Das, R. Jayaram, N. K. Kakani, S. K. Sen, 2000, “A Call admission and control scheme for quality-of-service(QoS) provisioning in next generation wireless networks”, Wireless Network, vol. 6, pp. 17-30
11.C. E. Fossa, D. J. Nathaniel, 2002, “A Dynamic Code Assignment for Quality of Service in 3G Wireless Networks”, IEEE Wireless Communications and Networking Conference, vol. 1, pp. 1-6
12.V. K. Garg, 2000, “IS-95 CDMA and cdma2000” , Prentice Hall
13.P. Goyal, H. M. Vin, 1996, “Network Algorithms and Protocol for multimedia Servers”, Proceedings of the 1996 15th Annual Joint Conference of the IEEE Computer and Communications Societies, pp. 1371-1379
14.H. Holma, A. Toskala, 2002, WCDMA for UMTS :radio access for third generation mobile communications, 2nd edition, John Wiley & Sons

15.Q. Huang, H. M. Chen, K. T. Ko, S. Chan, K. S. Chan, 2002, “Call Admission Control for 3G CDMA Networks with Differentiated QoS”, Networking 2002, LNCS 2345, pp. 636-674
16.V. Huang, W. Zhuang, 2004, “QoS-Oriented Packet Scheduling for Wireless Multimedia CDMA Communications”, IEEE Transactions on Mobile Computing, vol. 3, no. 1 pp. 73-85
17.A. C. Kam, T. Minn, K. Y. Siu, 2001, “Support Rate Guarantee and Fair Access for Bursty Data Traffic in W-CDMA”, IEEE Journal on selected areas in communications, vol. 19, no. 11, pp.2121-2130, Nov
18.T. Know, Y. Choi, C. Bisdikian, M. Naghshineh, 1998, “Call Admission Control for Adaptive Multimedia in Wireless/Mobile Networks”, ACM Workshop on Wireless Mobile Multimedia, pp. 111-116
19.Y. B. Lin, I. Chlamtac, 2001, Wireless and Mobile Network Architectures , John Wiley
20.C. Lindemann, M. Lohmann, A. Thummler, 2003, “A Unified Approach for Improving QoS and Provider Revenue in 3G Mobile Networks”, Mobile Networks and Applications, vol. 8, pp. 209-221
21.T. Minn, K. Y. Siu, 2000, “Dynamic assignment of orthogonal variable-spreading-factor codes in W-CDMA”, IEEE Selected Areas in Communications, vol. 18, pp.1429-1440
22.K. Nahrstedt, J. M. Smith, 1995, “The QoS Broker ” IEEE Multimedia, vol. 2, no. 1, pp. 53-67
23.T. Ojanpera, R. Prasad, 1998, “An Overview of Third-Generation Wireless Personal Communication: a European Perspective”, IEEE Wireless Communications and Networking, Volume:5, pp.59-65, Dec
24.Y. Sekine, K. Kawanishi, U. Yamamoto, Y. Onozato, 2003, “Hybrid OVSF code assignment scheme in W-CDMA”, IEEE Communications Computers and signal Processing, vol. 1 pp. 384-387
25.D. H. Shih, Z. Q. Lin, 2004, “Bandwidth saturation QoS provisioning for adaptive multimedia in wireless/mobile networks, Computer Standards & Interfaces, vol. 26, no 4, pp. 279-288. SCI
26.Y. C. Tseng, C. M. Chao, 2002, “Code Placement and Replacement Strategies for Wideband CDMA OVSF Code Tree Management”, IEEE Transactions on mobile computing, vol. 1, no. 4, pp. 293-302, Oct
27.A. J. Viterbi, 1995, CDMA:Principles of Spread Spectum Communication, Addison-Wesley
28.Y. Xiao, C. L. P. Chen, Y. Wang, 2000, “An Optimal Distributed Call Admission Control for Adaptive Multimedia in Wireless/Mobile Networks ”, Analysis and Simulation of Computer and Telecommunication Systems, pp. 477-482

29.L. H. Yen, M. C. Tsou, 2003, “An OVSF code assignment scheme utilizing multiple Rake combiners for W-CDMA” , IEEE International Conference on Communications, pp. 3312-3316, May
30.王英裕,蘇怡如,2003,第三代行動通訊發展之相關商機探索,工研院經資中心,新竹縣竹東鎮
31.林志強, 調適性多媒體無線網路服務品質提昇之研究, 雲林科技大學資訊管理所, 碩士論文, 民92
32.林狄成, 適用於第三代行動通訊環境下之頻寬管理機制, 中正大學資訊管理所, 碩士論文, 民92
33.吳雅萍, 在寬頻分碼多工存取系統中的一個新穎的分配碼的方法, 清華大學資訊工程所, 碩士論文, 民89
34.經濟部,2003,”我國網際網路用戶數調查統計”,經濟部技術處委託資策會電子商務應用推廣中心FIND,台北,http://tw.emarketing.yahoo.com/market/
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