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--- exploring_lora [2018/09/29 13:02] – samer
+++ exploring_lora [2018/09/29 13:14] – [4.1. Time on Air] samer
@@ Line 120: / Line 120: @@
 ==== -. Time on Air ====
-In this section, you will measure the Time on Air (ToA) under the three different radio configurations and for different message sizes. The ToA is the time necessary to send a message on the radio interface.
+In this section, you will measure the Time on Air (ToA) as given by the time necessary to transmit a message on the radio interface. You will assess the impact of the spreading factor, the bandwidth, the coding rate, and the message size on the ToA.
 For this, you can start by implementing a function on the client that measures the time necessary for sending a message. For example, you can use the [[https://www.arduino.cc/en/Reference/Micros| micros()]] function available in the arduino libraries.
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-  * Join commented extracts of your code and explain your approach for computing the ToA.
+  * Describe the scenarios you used for assessing the impact of radio parameters on the ToA. You can join commented extracts of your code.
-  * Draw a box plot of the ToA under the three different radio configurations and for three different message sizes.
+  * Visualise the experimental results using for example [[http://www.physics.csbsju.edu/stats/box2.html | box plots]] of the ToA as function of the different radio parameters.
   * Analyze the obtained results and compare with the theoretical computations. You can superpose the theoretical results and the practical ones on the same graph.
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