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Quality-of- Service in IP Services over Bluetooth Ad- Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, U niversity of Calgary, Canada JIANN-LIANG CHEN, PO-TSANG LIN and KA-CH IN YEN Department of Computer Science and Information Eng ineering, National Dong Hwa University, Taiwan Mobile Networks and Applicatio ns 8, 699–709, 2003 2003 Kluwer Academic Publishers. Manufactured in T he Netherlands.

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Page 1: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Quality-of-Service in IP Services over Bluetooth Ad-Hoc

Networks

WAH-CHUN CHANDepartment of Electrical and Computer Engineering, Unive

rsity of Calgary, CanadaJIANN-LIANG CHEN, PO-TSANG LIN and KA-CHIN Y

ENDepartment of Computer Science and Information Engineer

ing, National Dong Hwa University, Taiwan

Mobile Networks and Applications 8, 699–709, 20032003 Kluwer Academic Publishers. Manufactured in The Netherlands.

Page 2: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

OutLine

• Introduction

• Bluetooth-IP services

• QoS-centric cascading mechanism

• Performance analysis

• Conclusions

Page 3: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Introduction

• Bluetooth have the potential to ensure the best services, system resources and quality.

• The BLUEPAC (BLUEtooth Public ACcess) can enable mobile Bluetooth devices to access local area networks.

Page 4: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Introduction

• BT can access IP network services using the – IETF Point-to-Point Protocol (PPP) and – the Bluetooth Network Encapsulation Protocol

(BNEP).

Page 5: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Introduction

• To provide high QoS in a Bluetooth-IP mobile environment, a pre-requisite for our discussion is seamless data transmission.

• A cascading system：– fair resource allocation scheme, – seamless handoff strategy, and– transparent bridging system

Page 6: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Bluetooth-IP services

Page 7: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Bluetooth-IP services

• Piconet• Scatternet： Several piconets

Page 8: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Bluetooth-IP services

Page 9: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Bluetooth-IP services

Page 10: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

• QoS is critical in transmitting of different network segments.

• a QoS-centric cascading mechanism

Page 11: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

• Intra-piconet resource allocation

• Inter-piconet handoff

• Bluetooth-IP access system

Page 12: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

• Intra-piconet resource allocation– Two service types:

• Synchronous Connection Oriented (SCO) and

• Asynchronous Connectionless Link (ACL)– Flush Timeout

Page 13: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

Page 14: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

Page 15: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

• Inter-piconet handoff– Connection procedure

– Handoff

Page 16: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

Page 17: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

Page 18: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

• Bluetooth-IP access system

Page 19: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

Page 20: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

QoS-centric cascading mechanism

Page 21: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Performance analysis

Page 22: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Performance analysis

Page 23: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Performance analysis

Page 24: Quality-of-Service in IP Services over Bluetooth Ad-Hoc Networks WAH-CHUN CHAN Department of Electrical and Computer Engineering, University of Calgary,

Conclusions

• A fast and efficient handoff scheme that supports BT roaming handoffs between different Access Points was proposed.

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