[Dataset] gatech/vehicular (v. 2006-03-15)

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the initial version

@MISC{gatech-vehicular-2006-03-15,
  author = {Richard M. Fujimoto and Randall Guensler and Michael P. Hunter and Hao Wu and Mahesh Palekar and Jaesup Lee and Joonho Ko},
  title = {{CRAWDAD} data set gatech/vehicular (v. 2006-03-15)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/gatech/vehicular},
  month = mar,  
  year = 2006
}
					

This dataset contains the measurement of the performance of short 
range communications between vehicles and between vehicle and roadside station.

The experiments were conducted in the northwest sector of Atlanta, GA 
along I-75 between Exit 250 and Exit 255 as shown in the figure in the README 
files in the traces. This section of I-75 corridor has five regular lanes 
in addition to one HOV lane in most parts of the study area.  Vehicle traffic 
in the opposite directions is separated by a concrete median barrier. 
All the experiments were conducted between 2pm and 5pm under non-congested traffic 
conditions and non-inclement weather conditions.

For the experiments, laptop computers running Red Hat Linux 9, 
an ORINOCO 802.11b gold card with a 2.5dB omni-directional external antenna 
placed on the roof of the vehicle, and a Garmin 72 GPS receiver 
(with WAAS correction). The wireless cards configured in IBSS ad-hoc mode 
with power management turned off and a fixed data rate. The GPS reports 
latitude, longitude, speed, and heading of the vehicle every 2 seconds. 
The location information reported by GPS has an accuracy of 5-7 meters. 
We obtained location information every second through interpolation. 
All experiments were conducted using broadcast at 2Mbps that allows us 
to explore basic communication performance because there is no RTS/CTS/ACK 
and retransmissions.

IPerf, a network performance measurement tool was used along with the GPS 
readings to in conjunction with GPS readings to measure network performance. 
Both sender and receiver log time, location, velocity (from GPS), data packets 
received / sent, and signal quality.

[Traceset] gatech/vehicular/v2r (v. 2006-03-15)

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the initial version

@MISC{gatech-vehicular-v2r-2006-03-15,
  author = {Richard M. Fujimoto and Randall Guensler and Michael P. Hunter and Hao Wu and Mahesh Palekar and Jaesup Lee and Joonho Ko},
  title = {{CRAWDAD} trace set gatech/vehicular/v2r (v. 2006-03-15)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/gatech/vehicular/v2r},
  month = mar,  
  year = 2006
}
					

Performance measurement of a short range communications between vehicle and roadside traffic.

Sender and Receiver were equipped with the same equipment 
described above in network description. While the sender was in a vehicle. 
The sending vehicle traveled in loops Exit 252B and Exit 255 along I-75 for 5 laps. 
The vehicle was driven in the rightmost lane whenever possible. The sender broadcasted 
packets of 1470 bytes at an average rate of about 150 packets/s. 
The receiver was placed on the Peachtree Battle bridge above the median. 
The receiver was placed in either southern or northern side of the bridge and 
at different heights.  Different locations of the receiver are as follows:

a.	Low Howell - The receiver was placed on the southern side of the bridge 
facing Exit 252B on the table of height 0.7m. The traces of this experiment 
are stored in the low_howell directory.

b.	High Howell - The receiver was placed on the southern side of the bridge 
facing Exit 252B on a tripod of height 1.8m. The traces for this experiment 
are stored in high_howell directory.

c.	Low Moore - The receiver was placed on the northern side of the bridge 
facing Exit 254 on the table of height 0.7m. The traces of this experiment 
are stored in the low_moore directory.

d.	High Moore - The receiver was placed on the northern side of the bridge 
facing Exit 254 on a tripod of height 1.8m. The traces for this experiment 
are stored in high_moore directory.

The traces for each lap are stored in separate files. 
Trace file format consists of:

#, Time in Sec,Time in usec, Bytes sent,Sender latitude,
Sender longitude, Sender Speed (km/h), Sender Altitude (m), 
Receiver latitude, Receiver Longitude, Receiver Speed,
Receiver Altitude (m), Packet Received (Y/N), Bytes Received, 
Signal Strength, Noise Strength.

- # : Packet ID. Each packet sent was identified by a unique id.
- Time in Sec : Time at which the packet was sent. This value gives 
the number of seconds since the Epoch. It is obtained by gettimeofday() 
function call on Linux.
- Time in usec : Time at which the packet was sent. This value gives 
the number of microseconds since Epoch. It is obtained by gettimeofday() 
function call on Linux.
- Bytes Sent : Number of bytes sent in the packet having id #.
- Sender Latitude : Obtained from GPS. Format - dd.ddddddN. N stands for North.
- Sender Longitude : Obtained from GPS. Format - dd.ddddddW. W stands for West.
- Sender Speed : Obtained from GPS in km/h.
- Sender Altitude : Obtained from the GPS in m.
- Receiver Latitude : Obtained from the GPS. Format - dd.ddddddN. N stands for North.
- Receiver Longitude : Obtained from the GPS. Format - dd.ddddddW. W stands for West.
- Receiver Speed : Obtained from GPS in km/h.
- Receiver Altitude : Obtained from the GPS in m.
- Packet Received (Y/N) : If the packet identified by # was received then 
this field has 'Y' else 'N'. 
- Bytes Received : Number of bytes received in the packet identified by #.
- Signal Strength : This is measured at the receiver using ioctl system call. 
Signal strength is 0 for dropped packets. The value of "-256" indicates 
that the signal strength measurement was turned off during the experiment. 
Hence neglect the signal strength measurements with value -256.
- Noise Strength : This is measured at the receiver using ioctl system call. 
Noise strength is 0 for dropped packets. The value of "-256" indicates 
that the noise strength measurement was turned off during the experiment. 
Hence neglect the noise strength measurements with value -256.

[Traceset] gatech/vehicular/v2v (v. 2006-03-15)

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the initial version

@MISC{gatech-vehicular-v2v-2006-03-15,
  author = {Richard M. Fujimoto and Randall Guensler and Michael P. Hunter and Hao Wu and Mahesh Palekar and Jaesup Lee and Joonho Ko},
  title = {{CRAWDAD} trace set gatech/vehicular/v2v (v. 2006-03-15)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/gatech/vehicular/v2v},
  month = mar,  
  year = 2006
}
					

Performance measurement of a short range communications between vehicle to vehicle.

Both the sender and receiver were placed in vehicles. 
Two different kinds of experiments were conducted.

a.	Following Scenario: The vehicles traveled in a loop between Exit 250 
and Exit 255 with the sender vehicle following the receiving vehicle. 
Both the vehicles remained in the same lane, second from right. 
We tried to maintain same distance between two vehicles in a lap. 
But the distance between two vehicles was varied for different laps. 
The traces for this experiment are stored in v2v_follow directory. 
This experiment was done on two days. Hence there are two folders - 
one for each day in the v2v_follow directory. 

b. Crossing Scenario: The experiments were conducted on I-75 between 
Exit 252B and Exit 254. The two vehicles always stayed in the rightmost 
lane, and were separated by 8 lanes of traffic and a concrete median. 
The traces for this experiment are stored in v2v_opposite directory.

The traces for each lap are stored in separate files. 
Trace file format consists of:

#, Time in Sec,Time in usec, Bytes sent,Sender latitude,
Sender longitude, Sender Speed (km/h), Sender Altitude (m), 
Receiver latitude, Receiver Longitude, Receiver Speed,
Receiver Altitude (m), Packet Received (Y/N), Bytes Received, 
Signal Strength, Noise Strength.

- # : Packet ID. Each packet sent was identified by a unique id.
- Time in Sec : Time at which the packet was sent. This value gives 
the number of seconds since the Epoch. It is obtained by gettimeofday() 
function call on Linux.
- Time in usec : Time at which the packet was sent. This value gives 
the number of microseconds since Epoch. It is obtained by gettimeofday() 
function call on Linux.
- Bytes Sent : Number of bytes sent in the packet having id #.
- Sender Latitude : Obtained from GPS. Format - dd.ddddddN. N stands for North.
- Sender Longitude : Obtained from GPS. Format - dd.ddddddW. W stands for West.
- Sender Speed : Obtained from GPS in km/h.
- Sender Altitude : Obtained from the GPS in m.
- Receiver Latitude : Obtained from the GPS. Format - dd.ddddddN. N stands for North.
- Receiver Longitude : Obtained from the GPS. Format - dd.ddddddW. W stands for West.
- Receiver Speed : Obtained from GPS in km/h.
- Receiver Altitude : Obtained from the GPS in m.
- Packet Received (Y/N) : If the packet identified by # was received then 
this field has 'Y' else 'N'. 
- Bytes Received : Number of bytes received in the packet identified by #.
- Signal Strength : This is measured at the receiver using ioctl system call. 
Signal strength is 0 for dropped packets. The value of "-256" indicates 
that the signal strength measurement was turned off during the experiment. 
Hence neglect the signal strength measurements with value -256.
- Noise Strength : This is measured at the receiver using ioctl system call. 
Noise strength is 0 for dropped packets. The value of "-256" indicates 
that the noise strength measurement was turned off during the experiment. 
Hence neglect the noise strength measurements with value -256.

[Trace] gatech/vehicular/v2r/low_moore (v. 2006-03-15)

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the initial version

@MISC{gatech-vehicular-v2r-low_moore-2006-03-15,
  author = {Richard M. Fujimoto and Randall Guensler and Michael P. Hunter and Hao Wu and Mahesh Palekar and Jaesup Lee and Joonho Ko},
  title = {{CRAWDAD} trace gatech/vehicular/v2r/low_moore (v. 2006-03-15)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/gatech/vehicular/v2r/low_moore},
  month = mar,  
  year = 2006
}
					

Trace of the traffic between vehicle to roadside where the receiver was placed low on the northern side of the bridge.

Date: 11 Feb 2005
Time: Afternoon

Sender:
Car: Subaru Imprezza
Antenna - External antenna on top of the front passenger seat.

Receiver:
Location: Peachtree battle bridge.
Antenna - External Antenna on the table (0.7m) on the side facing North.

Description:
Sender travelling in a loop between exit 250 and exit 255. Data collected over 5 laps.

Direction:
Northbound - Exit 250 to Exit 255.
Southbound - Exit 255 to Exit 250.

See note in the parent traceset (gatech/vehicular/v2r)

[Trace] gatech/vehicular/v2r/high_moore (v. 2006-03-15)

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the initial version

@MISC{gatech-vehicular-v2r-high_moore-2006-03-15,
  author = {Richard M. Fujimoto and Randall Guensler and Michael P. Hunter and Hao Wu and Mahesh Palekar and Jaesup Lee and Joonho Ko},
  title = {{CRAWDAD} trace gatech/vehicular/v2r/high_moore (v. 2006-03-15)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/gatech/vehicular/v2r/high_moore},
  month = mar,  
  year = 2006
}
					

Trace of the traffic between vehicle to roadside where the receiver was placed high on the northern side of the bridge.

Date: 24 Jan 2005 and 11 Feb 2005

Sender:
Car: Subaru Imprezza
Antenna - External antenna on top of the front passenger seat.

Receiver:
Location: Peachtree battle bridge.
Antenna - External Antenna on top of tripod(1.8m) on the side facing North.

Description:
Sender travelling in a loop between exit 250 and exit 255. Data collected over 5 laps.

Direction:
Northbound - Exit 250 to Exit 255.
Southbound - Exit 255 to Exit 250.

See note in the parent traceset (gatech/vehicular/v2r)

[Trace] gatech/vehicular/v2r/low_howell (v. 2006-03-15)

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the initial version

@MISC{gatech-vehicular-v2r-low_howell-2006-03-15,
  author = {Richard M. Fujimoto and Randall Guensler and Michael P. Hunter and Hao Wu and Mahesh Palekar and Jaesup Lee and Joonho Ko},
  title = {{CRAWDAD} trace gatech/vehicular/v2r/low_howell (v. 2006-03-15)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/gatech/vehicular/v2r/low_howell},
  month = mar,  
  year = 2006
}
					

Trace of the traffic between vehicle to roadside where the receiver was placed low on the southern side of the bridge.

Date: 4 Feb 2005
Time: Afternoon

Sender:
Car: Subaru Imprezza
Antenna - External antenna on top of the front passenger seat.

Receiver:
Location: Peachtree battle bridge.
Antenna - External Antenna on the table (0.7m) on the side facing south.

Description:
Sender travelling in a loop between exit 250 and exit 255. Data collected over 5 laps.

Direction:
Northbound - Exit 250 to Exit 255.
Southbound - Exit 255 to Exit 250.

See note in the parent traceset (gatech/vehicular/v2r)

[Trace] gatech/vehicular/v2r/high_howell (v. 2006-03-15)

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the initial version

@MISC{gatech-vehicular-v2r-high_howell-2006-03-15,
  author = {Richard M. Fujimoto and Randall Guensler and Michael P. Hunter and Hao Wu and Mahesh Palekar and Jaesup Lee and Joonho Ko},
  title = {{CRAWDAD} trace gatech/vehicular/v2r/high_howell (v. 2006-03-15)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/gatech/vehicular/v2r/high_howell},
  month = mar,  
  year = 2006
}
					

Trace of the traffic between vehicle to roadside where the receiver was placed high on the southern side of the bridge.

Date: 4 Feb 2005
Time: Afternoon

Sender:
Car: Subaru Imprezza
Antenna - External antenna on top of the front passenger seat.

Receiver:
Location: Peachtree battle bridge.
Antenna - External Antenna on top of tripod(1.8m) on the side facing south.

Description:
Sender travelling in a loop between exit 250 and exit 255. Data collected over 5 laps.

Direction:
Northbound - Exit 250 to Exit 255.
Southbound - Exit 255 to Exit 250.

See note in the parent traceset (gatech/vehicular/v2r)

[Trace] gatech/vehicular/v2v/v2v_follow (v. 2006-03-15)

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the initial version

@MISC{gatech-vehicular-v2v-v2v_follow-2006-03-15,
  author = {Richard M. Fujimoto and Randall Guensler and Michael P. Hunter and Hao Wu and Mahesh Palekar and Jaesup Lee and Joonho Ko},
  title = {{CRAWDAD} trace gatech/vehicular/v2v/v2v_follow (v. 2006-03-15)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/gatech/vehicular/v2v/v2v_follow},
  month = mar,  
  year = 2006
}
					

Trace of the traffic between two vehicles where the sender vehicle follows the receiving vehicle

ate: 13 April 2005 and 20 Apr 2005
Time: Afternoon

Sender :
Car: Subaru Imprezza
Antenna - External antenna on top of the front passenger seat.

Receiver:
Car:Nissan Altima (2000)
Antenna - External antenna on top of the front passenger seat.

Description:
Sender following the receiver broadcasting UDP packets of size 1470 
bytes with an average rate of 150 packets/sec.
The vehicles traveled in a loop between Exit 250 and Exit 255 with 
the sender vehicle following the receiving vehicle. Both the vehicles 
remained in the same lane, second from right. We tried to maintain 
same distance between two vehicles in a lap. But the distance between 
two vehicles was varied for different laps.Traces for each day are 
in seperate folders.

Direction:
Northbound - Exit 250 to Exit 255.
Southbound - Exit 255 to Exit 250.

See note in the parent traceset (gatech/vehicular/v2v)

[Trace] gatech/vehicular/v2v/v2v_opposite (v. 2006-03-15)

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the initial version

@MISC{gatech-vehicular-v2v-v2v_opposite-2006-03-15,
  author = {Richard M. Fujimoto and Randall Guensler and Michael P. Hunter and Hao Wu and Mahesh Palekar and Jaesup Lee and Joonho Ko},
  title = {{CRAWDAD} trace gatech/vehicular/v2v/v2v_opposite (v. 2006-03-15)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/gatech/vehicular/v2v/v2v_opposite},
  month = mar,  
  year = 2006
}
					

Trace of the traffic between two vehicles moving in opposite direction

Date: 23 Feb 2005

Sender :
Car: Subaru
Antenna - External antenna on top of the front passenger seat.

Receiver:
Car: Nissan Altima (2000)
Antenna - External antenna on top of the front passenger seat.

Description:
Sender following the receiver broadcasting UDP packets of size 1470 bytes 
at a rate of 150 packets/sec. The experiments were conducted on I-75 
between Exit 252B and Exit 254. The two vehicles always stayed in 
the rightmost lane, and were separated by 8 lanes of traffic and 
a concrete median.

Direction:
Northbound - Exit 250 to Exit 255.
Southbound - Exit 255 to Exit 250.

See note in the parent traceset (gatech/vehicular/v2v)

[Author] Richard M. Fujimoto

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[Author] Randall Guensler

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[Author] Michael P. Hunter

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[Author] Hao Wu

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[Author] Mahesh Palekar

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[Author] Jaesup Lee

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[Author] Joonho Ko

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[Paper] wu-vehicles

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