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T Toward the Ubiquitously Networked d h Ubi i l N k d Society: QoS-aware Residential y Q Gateway with ZigBee-based Network Department of Information Engineering and p g g Informatics, Tzu Chi College of Technology, Taiwan Pei-Chen

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T d h Ubi i l N k d Toward the Ubiquitously Networked Society: QoS-aware Residential y Q Gateway with ZigBee-based Network

Department of Information Engineering and p g g Informatics, Tzu Chi College of Technology, Taiwan Pei-Chen Tseng, Assistant Professor

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Abstract

O li b dd d Q S id ti l

 Our earlier embedded QoS-aware residential

gateway (EmQRG) for real-time class-based i (CBQ) b d idth t i queuing (CBQ) bandwidth management is reviewed and experimentally demonstrated.

 EmQRG’s high QoS is demonstrated in

conjunction with a wireless ZigBee network of t t /h idit it i temperature/humidity monitoring sensors.

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Abstract

C iti ll th E QRG d t i it

 Critically, the EmQRG sends a top-priority

  • ver-temperature alarm when any

t t /h idit d l t temperature/humidity module reports a temperature exceeding a preset value.

 This emergency signal has top EmQRG

transmission priority.

 Experiments verify the over-temperature

alarm sends/receives “immediately” regardless of heavy network congestion or bottlenecking.

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Outline

 Introduction  QRG evolution  EmQRG with ZigBee-based network architecture  DiffServ-QoS mechanism and application  DiffServ-QoS mechanism and application

structure of the FT-6250/FT-6251 ZigBee network network

 System implementation and experimental results

(video) (video)

 Conclusion and future works

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Introduction

 The technological future is increasingly

perceived as being ubiquitously networked, wherein wireless networks (WN) and smart WN-capable sensing devices form p g complicated systems of systems.

 Wireless Sensor Networks (WSNs)  Wireless Sensor Networks (WSNs)  ZigBee Sensor Networks  Comparison of wireless network technologies

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Introduction (cont.) ( )

 QoS  High QoS is demanded for critical alarm data

g Q concurrent with streaming media.

 QRG evolution  QRG evolution  EmQRG’s ability to deliver high QoS in

conjunction with a ZigBee system

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QoS (Quality of Service) Q (Q y )

 Integrated service (IntServ)

 flow-based guarantees  serious bandwidth

g scalability problems

 Differentiated service (DiffServ)

Differentiated service (DiffServ)

 classify per-hop behavior (PHB) based on

DiffServ codepoint (DSCP) in each packet’s IP DiffServ codepoint (DSCP) in each packet s IP header

 BE (Best Effort)

( )

 EF (Expedited Forwarding)  AF (Assured Forwarding)

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Per-hop Behaviors (PHBs) p ( )

Current PHBs defined for DiffServ to implement QoS: Current PHBs defined for DiffServ to implement QoS:

Expedited Forwarding (EF)

Low latency + low loss + low jitter + assured BW

Assured Forwarding (AF)

Assured Forwarding (AF)

Low loss, target BW rate, but no guarantee on latency

Best-Effort (BE)

The type of traffic currently supported by the Internet with

The type of traffic currently supported by the Internet with no guarantees or QoS

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In-home networking technologies g g

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QRG evolution Q

QRG EmQRG SOA QRG RG

  • PC-based RG
  • QoS-aware RG
  • Embedded-

based QRG

  • Embedded-

based QRG IEEE T CE 2005

  • PC-based

RG Q

  • ICOS 2005 & got

the Best Team award for 2004 NSC Open Source

based QRG

  • SOA-able
  • IJICIC 2010
  • IEEE T-CE 2005
  • ICOS 2006
  • IIHMSP 2006
  • X10 system
  • IEEE 1394

NSC Open Source Project in 2006

  • VoD
  • IJICIC 2010
  • SSIRI 2008
  • IEEE T-CE 2008
  • ISWPC 2011

IEEE 1394

  • Internet
  • ISWPC 2011

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RG

Residential Gatew ay

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QRG QRG

QoS-aw are Q RG

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QRG QRG

  • W. S. Hwang, P. C. Tseng, and our lab. team, got the Best Team award for

2004 NSC Open Source Project Aug 1 2006

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2004 NSC Open Source Project, Aug. 1, 2006.

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ICOS 2005

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ICOS 2005

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QRG QRG

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X10 Two-way interface module Interface circuit

RS 232C Power line Power line IEEE1394

DV

IEEE1394

QRG

RS 232C ard

VoD server

QRG

RFID

ca

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VoD (Video on Demand) ( )

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X10 Two-way interface module Interface circuit

RS 232C

interface module circuit

Power line

PDA

Ethernet

QRG

NoteBook

RS 232C

QRG

RFID

RS 232C

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X10 Two-way interface module Interface circuit

RS 232C

interface module circuit

Power line

PDA

Ethernet

NoteBook

RS 232C

EmQRG

RFID

RS 232C

W.S. Hwang and P.C. Tseng, “A QoS-aware Residential Gateway with Bandwidth Management ” IEEE Transactions on Consumer Electronics Aug 2005 (SCI EI)

ARM920T

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Management, IEEE Transactions on Consumer Electronics, Aug. 2005. (SCI, EI)

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FD-IXP 425

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IIHMSP 2006 (EI)

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EmQRG EmQRG

ICOS 2006

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ICOS 2006

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  • P. C. Tseng, J. W. Wang, and W. S. Hwang, “Securing traffic at QoS-aware residential

gateway using biometric signatures,” IEEE Transactions on Consumer Electronics, vol. 54, no. 3, pp. 1148-1156, Aug. 2008. (SCI, EI)

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pp g ( )

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EmQCG EmQCG EmQCG

SSIRI 2008

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ISWPC 2011

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ISWPC 2011

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  • P. C. Tseng, C. Y. Chen, W. S. Hwang, J. S. Pan and B. Y. Liao, "QoS-aware

Residential Gateway Supporting ZigBee-related Services Based on a Service-oriented Architecture '' International Journal of Innovative Computing Information and Control

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Architecture,'' International Journal of Innovative Computing, Information and Control (IJICIC), vol. 6, no. 6, pp. 2803-2816, Jun. 2010. (SCI, EI)

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ISWPC 2011

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ISWPC 2011

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EmQRG Q

 designed as a smart-home control center

integrating safety/security tasks by coordinating sharing of digital content, translating communication protocols among g p g various devices,

 working as a gateway to external networks  working as a gateway to external networks,  performing the DiffServ-QoS traffic

l ifi ti h i classification mechanism.

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EmQRG traffic classification Q

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DiffServ-QoS mechanism Q

  • DSME (DiffServ Marker Engine) is a mechanism

which performs DiffServ-QoS which performs DiffServ QoS.

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ZigBee g

 The standards of two organizations-- the IEEE and

the ZigBee alliance.

 ZigBee devices can work years on the same battery,

support transmission rates of 20 Kbps to 250 Kbps, and are very economical indoors from 10 to 100 meters meters.

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FT-6250/FT-6251 ZigBee network / g

 FT-6251 High Power ZigBee Sensor Boards transmit

temperature and humidity data to a ZigBee gateway, a FT-6250 High Power ZigBee Base Board in a star network topology network topology.

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ZigBee system g y

 The resulting ZigBee system is capable of:

 65,536 network (client) nodes

( )

 Optimized for timing-critical applications and

power management p g

 Time to join network: <30ms  Sleeping to active: <15ms  Channel access time: <15ms

 Full mesh networking Support

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Network formation process

p

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Application structure of the FT-6250/FT-6251 ZigBee network

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System implementation and experimental y p p results

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System implementation and experimental y p p results

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System implementation and experimental y p p results

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Conclusion and future works

O i E QRG h t k d d

 Our previous EmQRG home-network was expanded

to support a multi-platform multi-user network to help develop the pending ubiquitously networked help develop the pending ubiquitously networked world.

 Experiments confirm multimedia QoS, even during

Experiments confirm multimedia QoS, even during bottlenecked and congested network conditions.

 A ZigBee-based multi-module temperature/humidity

g p y network, sending an over-temperature alarm when the temperature exceeds a preset value, is sent/received “immediately” regardless of sent/received immediately regardless of congestion.

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Thank you very much.

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