README: precisions (trx power, etc.)

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Matteo Cypriani 2012-10-09 11:45:55 +02:00
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@ -56,7 +56,10 @@ The following mobile terminals can be used:
When received by a Fonera 2.0, the default packet size is 103 bytes for
a positioning request, and 116 bytes for an (auto)calibration request.
Unless stated otherwise, the Fonera is equipped with a 1.8 dBi antenna.
Unless stated otherwise:
- the Fonera is equipped with a 1.8 dBi antenna and its transmission
power is 18 dBm;
- the transmission power of the EeePC is 14 dBm.
* Common rules
@ -75,7 +78,8 @@ and each exception made to these rules or to the scenario description.
squeeze (Linux 2.6.32), with an Atheros AR 500 Wi-Fi interface. It
runs OwlPS Aggregator v1.3.1-14-ge278aab.
- Listeners: 4 Fonera 2.0 with 1.8 dBi antennas, running OpenWrt
Backfire. They run OwlPS Listener v1.3.0-11-gc4e0352.
Backfire. They run OwlPS Listener v1.3.0-11-gc4e0352, and their
transmission power is 18 dBm.
** Network
@ -357,6 +361,9 @@ following order:
2. hip,
3. ear.
Alternative procedure (advised for easier use of the measurements): a
separate aggregation file is made for each point and each altitude.
** Scenario 7 (altitude & human presence)
Repeat the scenario 6, but with a human operator standing 0.5 m at the
@ -380,7 +387,7 @@ is the size of the packets:
- 1450 B.
This size is the parameter given to OwlPS Client, and is less than the
size of the radio packet. The size of the packet received at the
listeners must be written, as it can vary.
listeners must be written in the report files, as it can vary.
Please refer to the scenario 5 for details and measurement procedure.
@ -423,8 +430,8 @@ points 3, 4 and 5 only) two times:
points to the West, and the South-West listener's antenna points to
the East.
#+CAPTION: Scenario 12, test 1.
#+begin_src ditaa :cmdline -s 2 :file s12-1.png
#+CAPTION: Scenario 12, antennas in the direction of the opposite wall
#+begin_src ditaa :cmdline -s 2 :file s12-opposite.png
+---+ +---+
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@ -443,8 +450,8 @@ points 3, 4 and 5 only) two times:
+---+ +---+
#+end_src
#+CAPTION: Scenario 12, test 2.
#+begin_src ditaa :cmdline -s 2 :file s12-2.png
#+CAPTION: Scenario 12, antennas forming a “circle”
#+begin_src ditaa :cmdline -s 2 :file s12-circle.png
+---+ +---+
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