wiki:Channels

Channel Characterization

Most of these videos were edited using Apple's Final Cut Studio. To view the source video files (the ".mov" files linked below), you will need Apple's free QuickTime software. All of the embedded videos here use the excellent JW FLV Media Player. To view the embedded videos, you need a recent version of the Adobe Flash Player browser plugin


Channel Characterization

Figures 1 - 7000 Packets

The following video demonstrates good and bad packets. Black signifies a good packet. Red signifies a bad packet.

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Download source video file: figure_1.mov (54MB)


Figures 1 Image - 7000 Packets

all packets

Figures 2 - 7000 Packets

The following video demonstrates each packet, regardless of good or bad.

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Download source video file: figure_2.mov (60MB)


Figures 2 Image - 7000 Packets

all packets

The data used in this program: PacketData_7000.m (60MB)

The m-file for creating these videos: step_plotter.m

The m-file for creating these images: plotter.m


ACE Emulator, Pedestrian A - 10,000 Packets

The below figure is for Velocity 0 km/h in the ACE emulator

all packets

The below figure is for Velocity 25 km/h in the ACE emulator

all packets

Download Pedestrian A m-file: Pedestrian_A.zip (50 MB)

This contains data PacketInfo_Vel#.m for the emulation with velocities of 0, 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275 km/h, file new_plotter.m for plotting time differences between packets received and for comparing frequence against db, and a file load_data.m which loads all files and plots all files.

ACE Emulator, Vehicle A - 10,000 Packets

Download Vehicle A m-file: Vehicle_A.zip (50 MB)

This contains data PacketInfo_Vel#.m for the emulation with velocities of 0, 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275 km/h, file new_plotter.m for plotting time differences between packets received and for comparing frequence against db, and a file load_data.m which loads all files and plots all files.


When loading a PacketInfo_Vel#.m file, the variables are:

NodeIDs <2x10000>

-1st row is the partner ID

-2nd row is the Antenna ID.

-10,000 is the total number of packets

PacketData <7x10000>

-1st row is time stamp in seconds

-2nd row is time stamp in microseconds

-3rd is goodPackets

-4th is otherBadPackets

-5th is partnerBadPackets

-6th is rxBytes

-7th is txBytes

Sec <1x10000>

-1st row is time stamp in seconds

USec <1x10000>

-1st row is time stamp in microseconds

chanBB <1x10000>

-1st row is chanEstsStruct agc_BB

chanRF <1x10000>

-1st row is chanEstsStruct agc_RF

chanEstsI <64x10000>

-Rows represent chanEstsStruct I component

chanEstsQ <64x10000>

-Rows represent chanEstsStruct Q component

pkStatus <1x10000>

-1st row is the Packet Status


All the specifications for these models may be found at:

ITU ITU-R M.1225, “Guidelines for evaluations of radio transmission technologies for IMT-2000,” 1997.

Some other sites : http://www.cse.wustl.edu/~jain/cse574-08/ftp/j_5phy/sld011.htm

Last modified 11 years ago Last modified on May 14, 2009, 5:09:22 PM

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