= 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 [http://www.apple.com/quicktime/download/ QuickTime] software. All of the embedded videos here use the excellent [http://www.jeroenwijering.com/?item=JW_FLV_Media_Player JW FLV Media Player]. To view the embedded videos, you need a recent version of the [http://www.adobe.com/products/flashplayer/ Adobe Flash Player] browser plugin

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= Channel Characterization =

=== Figures 1 - 7000 Packets ===
The following video demonstrates good and bad packets.
Black signifies a good packet.
Red signifies a bad packet.
{{{
#!html

<script type="text/javascript" src="/flash_video_player/swfobject.js"></script>

<div id="player">...</div>
<script type="text/javascript">
var so = new SWFObject('/flash_video_player/player.swf','mpl','480','360','9');
so.addParam('allowscriptaccess','always');
so.addParam('allowfullscreen','true');
so.addParam('flashvars','&file=/video_files/fig_1.mov&linktarget=_blank&fullscreen=true&image=/video_files/fig_1.png');
so.write('player');
</script>
}}}


//Download source video file: [//video_files/fig_1.mov figure_1.mov] (54MB)
----

=== Figures 1 Image - 7000 Packets ===
{{{
#!html
<img src="/video_files/figure1.jpg" alt="all packets" width=800/>
}}}
----

=== Figures 2 - 7000 Packets ===
The following video demonstrates each packet, regardless of good or bad.
{{{
#!html

<script type="text/javascript" src="/flash_video_player/swfobject.js"></script>

<div id="player_RTS">...</div>
<script type="text/javascript">
var so = new SWFObject('/flash_video_player/player.swf','mpl','480','360','9');
so.addParam('allowscriptaccess','always');
so.addParam('allowfullscreen','true');
so.addParam('flashvars','&file=/video_files/fig2.mov&linktarget=_blank&fullscreen=true&image=/video_files/fig_2.png');
so.write('player_RTS');
</script>
}}}


Download source video file: [//video_files/fig2.mov figure_2.mov] (60MB)
----
=== Figures 2 Image - 7000 Packets ===
{{{
#!html
<img src="/video_files/figure2.jpg" alt="all packets" width=800 />
}}}
----


The data used in this program: [//video_files/PacketData_7000.m PacketData_7000.m] (60MB)

The m-file for creating these videos: [//video_files/step_plotter.m step_plotter.m]

The m-file for creating these images: [//video_files/plotter.m plotter.m]

----
=== ACE Emulator, Pedestrian A - 10,000 Packets ===

The below figure is for Velocity 0 km/h in the ACE emulator
{{{
#!html
<img src="http://warp.rice.edu/trac/raw-attachment/wiki/Channels/Velocity_0.jpg" alt="all packets" width=800 />
}}}


The below figure is for Velocity 25 km/h in the ACE emulator
{{{
#!html
<img src="http://warp.rice.edu/trac/raw-attachment/wiki/Channels/Velocity_25.jpg" alt="all packets" width=800 />
}}}

Download Pedestrian A m-file: [http://warp.rice.edu/trac/raw-attachment/wiki/Channels/Pedestrian_A.zip 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: [http://warp.rice.edu/trac/raw-attachment/wiki/Channels/Vehicle_A.2.zip  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