ICACT 2012

Performance Study on SNMP and SIP over SCTP in Wireless Sensor Networks

Advisor: Quincy Wu Speaker: Chia-Wen Lu (Sally)

National Chi Nan UniversityTaiwan

Date: 2012/02/21

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Wireless Sensor Network (WSN)

• IEEE802.15.4 is a wireless communication standard protocol–Wireless personal area network

– Characteristics: low data rate, low power consumption, short distance transmission

• Myriads of applications– Smart grids, home automation and so on

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ZigBee/6LoWPAN

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ZigBee

ZigBee APS (Application Layer)

ZigBee NWK (Network Layer)

IEEE802.15.4Date Link/Physical Layer

6LoWPAN

Application Layer

Transport Layer

Network Layer (IPv6)

LoWPAN

IEEE802.15.4Data Link/Physical Layer

Protocol Stack

IPv6 over Low power Wireless Personal Area Network (6LoWPAN)

ZigBee/6LoWPAN WSN Management

• No universal network management protocol standard to jointly manage heterogeneous ZigBee and 6LoWPAN devices.

• Application layer protocol– Session Initiation Protocol (SIP)

– Simple Network Management Protocol(SNMP)

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SIP and SNMP

• SIP– A signaling control protocol in Voice over Internet

Protocol (VoIP)

– Extensions: register, subscribe, notify, instant messaging (IM),presence, and so on

• SNMP–Monitor and configure network devices

• Application protocol– SIP/SNMP usually run over UDP/TCP

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Stream Control Transmission Protocol(SCTP)

• SCTP is new reliable and message-oriented

transport layer protocol

• Two powerful functions make SCTP a highly efficient and reliable transmission mechanism–Multi-homing

–Multi-streaming

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SCTP (Cont.)• Multi-homing

– Multiple network connection paths

– Redundancy mechanism

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Internet

P1 P1

P2 P2

master

backup

sender receiver

data

data

SCTP(Cont.)• Muli-streaming– Classify data into different categories to be

transferred by independent streams

– Congestion control mechanism only slow down which stream occurs packets lost

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Application

SCTP

IP

Application

SCTP

IP

association

Stream 0

Stream 1

Sender Receiver

data1

data2

SIP/SNMP over SCTP

• ZigBee/6LoWPAN WSN– Lossy communication channels– Low data rate– Small packet sizes

• Example: ZigBee WSN– 2.4 GHz radio band– Data rate of 250 kbps

• SIP over SCTP or SNMP over SCTP may be a good idea to increase the management performance

in WSNs

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System ArchitectureZigBee Network

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System Architecture6LoWPAN Network

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Conclusion and future work

• Some interesting future work would be analyzing the behavior of SIP and SNMP over SCTP in WSNs by simulation tools, and verified its performance in real testbeds.

• This would allow network administrators to

wisely choose the best management protocol

to manage their WSNs.

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Thanks for your attention.

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NCNU: http://www.ncnu.edu.tw/ncnuweb/