1. National Chi Nan University Performance Evaluation of Transport Protocols in Smart Meter Networks Speaker: Chia-Wen Lu Advisor: Dr. Quincy Wu Date: 2012/07/23

2. National Chi Nan University Outline Introduction – Smart meter networks – Different messages classes in smart meter networks Transport protocols for smart meter networks – Stream Control Transmission Protocol (SCTP) Comparison between transport protocols – Transport protocols simulations – TCP and SCTP Conclusion Future work 2

3. National Chi Nan University Introduction Smart meter networks Two-way communication between customers and providers 3 Internet Smart Meter Server

4. National Chi Nan University Introduction (Cont.) Different messages classes in smart meter networks 4 Control messages Request messages Operation Billing messages Electricity usage messages Non-operation Warning messages Asynchronous event

5. National Chi Nan University Introduction (Cont.) The Quality of Service (QoS) requirements of messages – Bandwidth – Latency – Reliability – Integrity 5 Smart Meter Electric Light Control message: turn on /off (low latency, high reliability)

6. National Chi Nan University Transport protocols for smart meter networks Using Stream Control Transmission Protocol (SCTP) to transport messages – Meet the requirements of messages Functions of SCTP – Multi-homing – Multi-streaming Priority scheduling – Protection Availability of services Integrity of messages 6

7. National Chi Nan University SCTP: Multi-streaming and Multi-homing 7 S. Fu and M. Atiquzzaman, “SCTP: state of the art in research, products, and technical challenges”, IEEE Communications Magazine, Volume 42, Issue 4, April 2004, Pages 64-76.

8. National Chi Nan University Smart meter networks with SCTP mechanism support 8 Smart meter Server 1221 Association Back up Master stream 0 stream 1 warning messages Electricity usage messages

9. National Chi Nan University Comparison between transport protocols Transport protocols simulations – TCP / SCTP – NS2 simulation tool 9

10. National Chi Nan University Network Topology 10 S S 100Mb 10Gb 5ms 10ms SCTP/TCP r1 r2 d d s: smart meter d: server r1& r2: router

11. National Chi Nan University Test scenario (1) SCTP Multi-streaming vs TCP 11

12. National Chi Nan University Test scenario (1) SCTP Multi-streaming 12

13. National Chi Nan University d d S S Network Topology 13 100Mb 10G 5ms 10ms SCTP r1 r2 s: smart meter (if0: network interface 0, if1: network interface 1) d: server (if0: network interface 0, if1: network interface 1) r1& r2: router if0 if1 if0 if1 SCTP 100Mb 5ms

14. National Chi Nan University Test scenario (2) SCTP Multi-homing vs TCP 14

15. National Chi Nan University Test scenario (2) (Cont.) 15

16. National Chi Nan University Conclusion SCTP provides more flexible ways to transport messages in smart meter networks. When the packet loss rate is less than 10%, the performance of SCTP is better than TCP. In order to provide a stable communication services between providers and customers, using SCTP is a clever choice. 16

17. National Chi Nan University Future work Porting transport protocols in real test platforms and integrating network management system is my next target. Enhance security of smart meter networks to against malicious attacks and prevent unauthorized access in smart meter networks. 17