跳到主要內容

臺灣博碩士論文加值系統

(100.28.231.85) 您好!臺灣時間:2024/11/14 10:21
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

: 
twitterline
研究生:姚佩君
研究生(外文):Pei-Chun Yao
論文名稱:無線藍芽網路之換區機制設計
論文名稱(外文):Handoff Mechanisms for Bluetooth Network Services
指導教授:陳俊良陳俊良引用關係
指導教授(外文):Jiann-Liang Chen
學位類別:碩士
校院名稱:國立東華大學
系所名稱:資訊工程學系
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:2005
畢業學年度:93
語文別:英文
論文頁數:65
中文關鍵詞:藍芽換區
外文關鍵詞:bluetoothhandoff
相關次數:
  • 被引用被引用:1
  • 點閱點閱:255
  • 評分評分:
  • 下載下載:38
  • 收藏至我的研究室書目清單書目收藏:1
近年來,無線通訊已經成為大眾普遍使用之技術,不受空間限制存取網路資源正是其大受歡迎之原因。由於藍芽低價格、低耗電量、小體積的特性,使得它被大量的使用在行動裝置上,例如筆記型電腦、PDA以及智慧型手機。為了能夠更方便存取大眾網路的資源,Bluetooth Special Interest Group (SIG)在2003年訂定了Bluetooth Network Encapsulation Protocol (BNEP),此協定提供了藍芽設備可以和網際網路上的設備相互溝通的能力,彼此交換訊息及資料,使得藍芽的通訊不再侷限在一個狹小的Piconet。並且進一步訂定了 Personal Area Network(PAN) Profile,定義了藍芽無線裝置組成個人區域網路的方法,並提出如何將BNEP協定實現在PAN中,使藍芽無線裝置可以透過Network Access Point (NAP) 取得網際網路上的資源。
� � 由於藍芽通訊距離有限,導致藍芽無線裝置換區的次數頻繁,而面臨傳輸效能低落甚至服務中斷。針對以上問題,本論文提出一個“無縫隙換區機制”,在藍芽的Link Management Protocol (LMP) layer建立一個快速換區的機制以達到無縫隙換區。此換區機制是建構在藍芽通訊協定中,相當於OSI中的資料連結層。它針對藍芽提供了一個快速換區方式,有效縮短handoff delay time,以達成無縫隙換區的目標。提出的機制包含三個主要部分:Preliminary Procedure、Handoff Procedure 以及Update BS。在 Preliminary Procedure中提出藍芽無線設備與無線基地台如何快速的建立環境和適當的連線,以達成快速的Handoff Procedure。經過實驗驗證,Preliminary Procedure大約花費2415.58毫秒完成,而Handoff Procedure大約花費57.75 毫秒完成。
Bluetooth is a standard for short-range, low-power and low-cost wireless communication radio technology. Low price and small size mobile have made current mobile devices very successful for personal mobile communication. The Bluetooth Special Interest Group (SIG) PAN working group have defined Personal Area Network (PAN) Profile, which describes how to access a remote network through a network access point to facilitate access to the extensive resource on the internet. Bluetooth mobile devices can access public IP network through an access point or base station. The short radio range of Bluetooth technology causes mobile device to require frequent handoffs when they move within the Bluetooth public access network. The high handoff frequency causes users to suffer severe performance degradation. This study proposes a new scheme is to improve the handoff performance of Bluetooth services. The scheme involves layer 2 handoff to resolve the severe performance degradation problem. It consists of three procedures- preliminary procedure, handoff procedure, and update procedure. They are all implemented in the Bluetooth Link Management Protocol (LMP) layer and the Host Controller Interface (HCI) layer without any modifications of Bluetooth specification or the upper layers. The Inquiry_Scan_Interval, Inquiry_Scan_Window, Page_Scan_Interval, and Page_Scan_Window are the most strongly influence making connection in the preliminary procedure, so these are analyzed to reduce the connection delay. The simulation results reveal that the connection time is around 2415.58 milliseconds and is efficiently reduced. The proposed handoff procedure is simulated to prove that the handoff delay can be decreased efficiently in that way. Simulation results also show that the new scheme significantly reduces handoff delay. The handoff time is approximately 57.75 milliseconds.
Contents
摘要 I
Abstract II
Chapter 1 Introduction 1
1.1 Motivation 1
1.2 Organization of Thesis 5
Chapter 2 Backgrounds and Related Work 6
2.1 Introduction to Bluetooth Technology 6
2.1.1 Basic Concepts 6
2.1.2 Fundamental Operational Procedures 8
2.1.3 Bluetooth Connection State 9
2.2 Bluetooth-IP Services 14
2.3 Existing Handoff Schemes 18
Chapter 3 Proposed Handoff Mechanisms 21
3.1 Preliminary Procedure 22
3.2 Handoff Procedure 27
3.3 Updating Base Stations 29
Chapter 4 Experimental Results 32
4.1 Simulation of Preliminary Procedure 32
4.1.1 Inquiry Delay Analysis 33
4.1.2 Paging Delay Analysis 35
4.1.3 Simulation Results 38
4.2 Simulation of Handoff Procedure 40
4.2.1 Handoff Procedure Analysis 40
4.2.2 Simulation Results 41
Chapter 5 Performance Comparisons 45
5.1 Mobile Bluetooth Public Access Protocol (mBPAC) 45
5.2 Comparisons with mBPAC Protocol 49
Chapter 6 Conclusions and Future Work 51
6.1 Conclusions 51
6.2 Future Work 51
References 53
[1]W. Mohr and W. Konhäuser, “Access Network Evolution Beyond Third Generation Mobile Communications,” IEEE Communications Magazine, vol. 38 Issue: 12, pp.122-133, December 2000.
[2]J. Lansford, A. Stephens and R. Nevo “Wi-Fi (802.11b) and Bluetooth: Enabling Coexistence,” IEEE Network, vol.15, No.5, pp.20-27, September-October 2001.
[3]R. Shorey and B.A. Miller, “The Bluetooth technology: merits and limitations,” Proceedings of the IEEE International Conference on Personal Wireless Communications, pp.80-84, 2000.
[4]G. Ivano, D. Paolo, and F. Paolo, “The Role of Internet Technology in Future Mobile Data Systems,” IEEE Communications Magazine, Vol.38, No.11, pp.68-73, November 2000.
[5]T. S. Rappaport, Wireless Communications: Principles and Practice, 2nd edition, Prentice Hall, 2002.
[6]D. G. Leeper, “A Long-Term View of Short-Range Wireless,” IEEE Computer, Vol.34, No.6, pp.39-44, 2001.
[7]P.Johansson, M.Kazantzidis, R.Kapoor and M.Gerla, “Bluetooth: an Enabler for Personal Area Networking,” IEEE Network, Vol.15, No.5, pp.28-37, September-October 2001.
[8]D. Famolari and P. Agrawal, “Architecture and Performance of An Embedded IP Bluetooth Personal Area Network,” Proceedings of IEEE International Conference on Personal Wireless Communications, pp.75-79, 2000.
[9]D. Lee and W. Lee, “Ricocheting Bluetooth,” Proceedings of the 2nd International Conference on Microwave and Millimeter Wave Technology, pp.432-435, 2000.
[10]S. Baatz, M. Frank, R. Gopffarth, D. Kassatkine, P. Martini, M. Schetelig and A. Vilavaara, “Handoff Support for Mobility with IP over Bluetooth,” Proceedings of the 25th Annual IEEE Conference on Local Computer Networks, USA, pp.143-154, 2000.
[11]The Internet Engineering Task Force (IETF), https://www.ietf.org/.
[12]C. Perkins, IP Mobility Support for IPv4, IETF RFC 3220, January 2002.
[13]S. Sharma, N. Zhu and T.C. Chiueh, “Low-latency mobile IP handoff for infrastructure-mode wireless LANs,” IEEE Journal on Selected Areas in Communications, Vol. 22, No. 4, pp.643 – 652, May 2004.
[14]S. Deering and R. Hinden, Internet Protocol Version 6 (IPv6) Specification, IETF RFC 2460, December 1998.
[15]D. Johnson, C. Perkins and J. Arkko, Mobility Support in IPv6, IETF RFC3775, June 2004.
[16]Bluetooth SIG, “Bluetooth Core Specification Version 2.0,” https://www.bluetooth.org/spec.
[17]V. Zaruba, S. Basagni and I. Chlamtac, “Bluetrees-Scatternet Formation to Enable Bluetooth-Based Ad Hoc Networks,” Proceedings of the IEEE International Conference on Communications, Vol.1, pp.273 -277, 2001.
[18]L. Ching and K.Y. Siu, “A Bluetooth Scatternet Formation Algorithm,” Proceedings of the IEEE Global Telecommunications Conference, Vol.5, pp.2864-2869, 2001.
[19]P. Johansson, R. Kapoor, M. Kazantzidis and M. Gerla, “Rendezvous Scheduling in Bluetooth Scatternets,” Proceedings of the IEEE International Conference on Communications, Vol.1, pp.318 -324, 2002.
[20]W. Lee, Y. Joo, H. Tchah, Y. Kim and D. Eom, “Handoff Provisioning in Bluetooth Wireless Personal Area Networks,” IEEE Transactions on Consumer Electronics, Vol.49, No.4, pp.1004-1012, November 2003.
[21]S. Chung, H. Yoon and J. Cho, “A Fast Handoff Scheme for IP over Bluetooth,” Proceedings of the International Conference on Parallel Processing Workshops (ICPPW’02), pp.51-55, August 2002.
[22]D. Melpignano and D. Siorpaes, “Bluetooth TCP Booster,” The IEEE Semiannual Vehicular Technology Conference VTC2001 Spring, May 6-9, 2001.
[23]A. Kansal and U. Desai, “Mobility Support for Bluetooth Public Access,” Proceedings of the IEEE International Symposium on Circuits and Systems, Vol.5, May 2002, pp.V-725-V-728.
[24]M.L. George, L.J. Kalliduki and J.M. Chung, “Bluetooth Handover Control for Roaming System Application,” Proceedings of the 2002 45th Midwest Symposium, Vol. 1, pp.I-404-7, August 2002.
[25]K. Omae, T. Ikeda, M. Inoue, I. Okajima and N. Umeda, “Mobile node extension employing buffering function to improve handoff performance,” Wireless Personal Multimedia Communications, Proceedings of the 5th International Symposium, Vol. 1, pp.62-66, October 2002.
[26]W.M. Yao and Y.C. Chen, “An enhanced buffer management scheme for fast handover protocol,” Proceedings of the International Conference on Distributed Computing Systems Workshops, pp.896 – 901, March 2004.
[27]I. Mahadevan and K.M. Sivalingam, “Architecture and Experimental Results for Quality of Service in Mobile Networks Using RSVP and CBQ,” ACMBaltzer Wireless Networks Journal, Vol.6, No.3, pp.221-234, 2000.
[28]W.C. Chan, J.L. Chen, P.T. Lin and K. C. Yen, ”Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks,” Mobile Networks and Applications, Vol. 8, No. 6, pp.699-709, December 2003.
[29]Personal Area Network Profile Version 1.0, Bluetooth SIG PAN working group, https://www.bluetooth.org/spec.
[30]Bluetooth Network Encapsulation Profile Version 1.0, Bluetooth SIG PAN working group, https://www.bluetooth.org/spec.
[31]Bluetooth extension for ns2 at the University of Cincinnati, http://www.ececs.uc.edu/~cdmc/ucbt/
[32]The Network Simulator – ns2, http://www.isi.edu.tw/nanam.
[33]S. Chakrabarti, S.T. Vuong, A. Sinha and R. Paul, ”Bluemobile- a mobile IP based handoff system for Bluetooth, 802.11 and GPRS links,” Proceedings of the IEEE Consumer Communications and Networking Conference, pp.391-396, January 2005.
[34]K. Sethom and H. Afifi, “Requirements and adaptation solutions for transparent handover between Wifi and Bluetooth,” Proceedings of the IEEE International Conference on Communications, Vol.7, pp.3916-3920, 20-24 June 2004.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top