Pico Node Data Link Layer

1
Pico Node Data Link Layer

• What
• How
• Who

• Presented by Charlie Zhong
• September 5, 2001

2
Design Requirements

• Wireless sensor network is different
• Sensor network requirements
• Performance Setup Cost
• Maintenance Security Scalability
• Size
• Data link layer requirements
• Support required functions
• Power-aware Distributed No global sync.
• Scalable

3
Algorithm Highlights

• Event driven design
• Packet aggregation
• Access control
• Error control
• Power control
• Locally unique address
• Goal longest network life

4
Functional Description
5
System Operation
Initialization
Maintenance
Data Communication
6
VCC Implementation
7
We did it!
Application Layer
Test Bed
Arch
Transport Layer
Network Layer
NAMPS
Data Link Layer
PHY
Physical Layer
Design Chunlong Guo, Enyi Lin, Chris Savarese,
Marco Sgroi, Rahul Shah, Charlie
Zhong Implementation Fred Burghardt, Roberto
Passerone, Alessandro Pinto, Johnathan
Reason, Gerald Wang, Ruth Wang, Mei Xu