Driver Development for applications of networking services for a WAVE based device
1. DRIVER DEVELOPMENT FOR IEEE 802.11P &
IMPLEMENTATION OF WAVE NETWORKING
SERVICES
Group 12
Supervised By: Dr. Ajith Pasqual
2. OVERVIEW
• WAVE is a next generation Dedicated short Range
Communication (DSRC) technology.
• Has a data rate of 3-27Mbps even under a fast moving
situation.
• 802.11p/DSRC technology is the basis for future
Intelligent Transportation Systems.
• The number of 802.11p/DSRC devices, available in the
international market are very few and generally the price
exceeds 5000 USD.
3. PROCEDURE
• Driver Development
5.85 ~ 5.925GHz wireless mini-PCI with Atheros chip set
PC Ubuntu 12.04 LTS environment
Open source ath5k driver
• Implementation
Alix 3D3 board
Voyage Linux 0.8.0
4. DRIVER DEVELOPMENT (802.11A 802.11P)
• Frequency (5.85- 5.925 GHz)
• Bandwidth (10 MHz)
• Bit Rate (3, 4.5, 6, 9, 12, 18, 24, 27)
• Symbol Duration (8µs)
• Preamble Duration
• Sub Carrier Spacing
• Guard Time
• FFT Period
5. WAVE PROTOCOL STACK
WSMP – For Safety messages & controlling purposes
IPV6 – For advanced features (Internet, Toll collection)
6. WAVE NETWORK SERVICE (IEEE 1609.3)
Linux socket (int domain, int type, int protocol)
WSMP
domain =AF_PACKET
type = sock_diagram
protocol = 0x88dc
1 1 1 1 1 4 2 Variable
WSM Security Channel Data TX power Provider WSM WSM
Version type number Rate Level Service length data
Identifier
WSMP header Format
IPV6
domain =AF_INET6
type = sock_diagram
protocol = 0x86dd
7. CONTINUATION…
• 802.11p parameters
• Network Service Functions
• Mounting on a vehicle
• An application for demonstrating purposes (With GPS)
Traffic controlling at a junction
• An application for demonstrating purposes (Without GPS)
Highway-rail intersection warning
Ambulance/Military alarming
8. CHALLENGES
• The ideal antenna must range within 5.85-5.925 GHz with cable
and MMCX connector
Alternative :- GHz2.4-5.8GHz 4dBi Antenna
• Mounting the device on a vehicle
• Information and available resources are minimum
• The enormous budget
9. BUDGET
Item Cost (Rs)
2 mini PCI 50875
Tax for mini PCI 3650
2 PCI to mini PCI converters 1225
2 ALIX and two power supplies 43903
2 flash and flash reader 5626
2 antennas 5149
1 mmcx connector 189
1 USB keyboard 700
Total 111,317
THE END