Smart Grid Communication Performance Requirements

Smart Grid Network QOS Requirements

Data Characteristic

Utility Application

Broadband Access

In-Home Content Exchange

Competing Technologies

AMR, AMI, Powerline Carrier, Wireless, Radio, Zigbee (805.154)

DSL, FTTx, WiMax, Fixed Wireless, Cable

Ethernet, WiFi

Correspondents exchanging data?

Machine to machine

Machine to Person

Machine to Person

Correspondent Payload Exchange Need?

Symmetrical

Asymmetrical. Larger pipe delivering information

Symmetrical

Does the application require dedicated bandwidth?

No

No

Yes

How fast does the network need to be

<=1Mbps

>1Mbps

>100Mbps

Importance of Network Redundancy?

Critical

Important

Not Important

Importance of Network Security

Critical. Device Authentication and encrypted data between devices

Important. User authentication and selective data encryption

Not Important

Jitter Tolerance?

High

Low

Low

Latency Tolerance?

High

Low

Moderate

Network Utilization

Sporadic. Idle upto 90% of the time. Can be turned off

Utilization continuous

Sporadic. Always on

Open/Closed Network[1]

Closed

Open

Closed

Packet Loss Tolerance?

Low

Moderate

Low

Quantity of Data Exchanged

Small

Large

Largest

Realtime Data Exchange Required?

No

Subject to the application – VoIP and Video on Demand very Sensitive, E-mail is insensitive

Yes



[1] An open network needs to exchange data with other networks to connect the client (user) to the server (content)


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Subodh Nayar,
Jan 21, 2010 3:38 PM