(3.226.72.118) 您好!臺灣時間:2021/05/13 08:43
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
: 
twitterline
研究生:俞瑩珍
研究生(外文):Ying-Chen Yu
論文名稱:考慮能量使用效率下無線網路系統效益之最大化
論文名稱(外文):Maximization of System Throughput in Wireless Networks with the Consideration of Energy Efficiency
指導教授:林永松林永松引用關係
指導教授(外文):Yeong-Sun Lin
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:資訊管理學研究所
學門:電算機學門
學類:電算機一般學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:英文
論文頁數:70
中文關鍵詞:最佳化數學規劃服務品質排隊理論無線網路能源使用效率
外文關鍵詞:Nonlinear ProgrammingProjection MethodOptimizationMathematical ProgrammingWireless NetworkPower EfficiencyQueueing TheoryQuality of Service
相關次數:
  • 被引用被引用:0
  • 點閱點閱:107
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
無線網路環境下,最有潛力的莫過於資訊服務。許多現有的定點式服務,未來可能出現在無線環境中,而其他新式的應用也將為移動中的人們賦予新價值與新服務。

在無線環境中,能量與品質是提供應用與服務的兩大考量,是故,有限的能量資源與對延遲敏感的網路服務將會是傳輸策略的兩大議題。若能巧妙的掌握運用傳輸的資料型態、頻道品質、網路狀態,便能規劃出延長使用時間,並兼顧服務品質的傳輸策略。

本論文中,我們結合了「延遲引入」[15]的觀念與「臨界值」[7]的想法,試圖找到最大化系統效能的傳輸方案。即:在不同數量的待傳輸封包下,系統將提供不同的傳輸速率。我們根據排隊理論將系統狀態表示成數學規劃問題,在符合服務品質與傳輸功率的條件下,試圖找到一組最佳的傳輸速率與臨界值以最大化整體系統效能。
It seems clear that information services have an almost unlimited potential in a wireless environment. Many of today’s “fixed” applications will continue to be useful in a mobile environment, and a variety of new services are certain to evolve for people on the move.

Since the energy conservation and the QoS guarantees are the major concerns in supporting heterogeneous data applications in mobile devices, the limited portable battery energy and the delay sensitivity of data services will also play important roles in the design of such transmission strategies. Therefore, intelligently using the knowledge about the traffic, channel, and network, we can design transmission strategies which are not only capable of extending the battery lifetime as much as possible, but also maintaining the agreed QoS.

In this thesis we combine the idea of smartly introducing communication delay from[15] and the threshold concept of [7], and try to find energy efficient transmission schemes that maximize system throughput, in which given different packet volume waiting to be transmitted, the system provides different service rates. According to the Queueing Theory, we preliminary model the system behavior into nonlinear mathematical programming problems. By maximizing the system throughput under the constraints of QoS requirements and the power limitation, we try to find the best transmission rate for different packet volumes.
謝 詞 I
論文摘要 II
THESIS ABSTRACT III
Table of Contents V
List of Tables VII
List of Figures IX
Chapter 1. Introduction 1
1.1 Background 1
1.2 Motivation 2
1.3 Proposed Approach 3
1.4 Thesis Organization 4
Chapter 2. Literature Survey 5
2.1 Wireless Communication Technology 5
2.1.1 Satellites Communication 5
2.1.2 Wireless PANs 7
2.1.3 Wireless LANs 9
2.1.4 Cellular WANs 13
2.2 Low Power Design Issues 17
2.2.1 Device Level Optimization 18
2.2.2 Medium Access Control (MAC) Protocol Design 18
2.2.3 Communication System Level Optimization 20
2.2.4 Application Level Design 21
2.3 Performance and Service Rates 21
Chapter 3. Problem Formulation 25
3.1 Problem Description 25
3.2 Notation 27
3.3 Problem Formulation 28
Chapter 4. Solution Approach 35
4.1 Pilot Tests 35
4.2 Initial Point 41
4.3 Heuristic for the Model 42
Chapter 5. Computational Experiments 47
5.1 Case 1: IEEE 802.11g, Non Real-time Service 47
5.1.1 Parameters and Experiment Results 47
5.1.2 Result Discussion 49
5.2 Case 2: IEEE 802.11g, Real-time Service 51
5.2.1 Parameters and Experiment Results 51
5.2.2 Result Discussion 52
5.3 Case 3: UMTS Network, Non Real-time Service 55
5.3.1 Parameters and Experiment Results 55
5.3.2 Result Discussion 57
5.4 Case 4: UMTS Network, Real-time Service 59
5.4.1 Parameters and Experiment Results 59
5.4.2 Result Discussion 60
Chapter 6. Summary and Future Work 65
6.1 Summary 65
6.2 Future Work 66
References 69
[1].The Bluetooth Special Interest Group, http://www.bluetooth.com
[2].Third Generation Partnership Project (3GPP), March 2000, http://www.3gpp.org
[3].Third Generation Partnership Project (3GPP), “Radio link control (RLC) protocol specification,” March 2000, http://3gpp.org.
[4].ESTI, “HiperLAN Functional Specification,” ESTI Draft Standard, July 1995.
[5].D. P. Agrawal. Q. A. Zeng, “Introduction to Wireless and Mobile Systems,” Thomson, ISBN 0-534-40851-6, 2003
[6].B. R. Badrinath, P. Sudame, “To Send or not to Send: Implementing Deferred Transmissions in a Mobile Host”, in Proc. the 16th ICDCS, 1996, pp. 327--33.
[7].C.F. Chiasserini, M. Meo, “Impact of ARQ protocols on QoS in 3GPP Systems,” IEEE Trans. Veh. Technol., Vol. 52, pp. 205–215, Jan. 2003
[8].G. J. Foschini, Z. Miljanic, “A simple distributed autonomous power control algorithm and its convergence,” IEEE Trans. Veh. Technol., Vol. 42, pp. 641–646, Nov. 1993.
[9].S. A. Grandhi, R. Vijayan, D. J. Goodman, J. Zander, “Centralized power control in cellular radio systems,” IEEE Trans. Veh. Technol., Vol. 42, pp. 466–468, Nov. 1993.
[10].T. H. Lan, A. H. Tewfik, “A Resource Management Strategy in Wireless Multimedia Communications—Total Power Saving in Mobile Terminals With a Guaranteed QoS”
[11].P. Lettieri, C. Fragouli, M. Srivastava, “Low power error control for wireless links,” in Proc. MOBICOM ’97, 1997.
[12].K. Negus, A. Stephens J. Lansford, “HomeRF: Wireless Networking for the Connected Home,” IEEE Personal Communications, pp. 20-27, Feb. 2000
[13].K. Pahlavan, P. Krishnamurthy, “Principles of Wireless Networks”, Prentice Hall, ISBN 0-13-093003-2, 2002
[14].W. Stallings, “Wireless Communications and Networks,” Prentice Hall, ISBN 0-13-095011-4, 2002
[15].H. Wang, “Challenges in the Wireless Network Design: Energy Management and QoS Support,” Ph. D Thesis, Rutgers University, NJ, January 2003
[16].H. Woesner, J. Ebert, M. Schlager, and A.Wolisz, “Power-saving mechanisms in emerging standards for wireless LANs: The MAC level perspective,” IEEE Pers. Commun., pp. 40–59, June 1998.
[17].L. Xu, X. Shen, J. Mark, “Performance Analysis of Adaptive Rate and Power Control for Data Service in DS-CDMA Systems,” Proc. IEEE Globecom 2001,, pp. 627-631, Nov 2001
[18].J. Zander, “Performance of optimum transmitter power control in cellular radio systems,” IEEE Trans. Veh. Technol., Vol. 41, pp. 57–62, Feb. 1992.
[19].M. Zorzi and R. Rao, “Error control and energy consumption in communications for Nomadic computing,” IEEE Trans. Comput., Vol. 46, Mar. 1997.
[20].M. Zorzi and R. R. Rao, “Energy Management in Wireless Communication,” Proc. 6th WINLAB Wksp., New Brunswick, NJ, Mar. 1997, pp. 47
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
系統版面圖檔 系統版面圖檔