Differences

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--- exploring_lora [2018/09/29 23:36] – [5. Coverage Challenge] samer
+++ exploring_lora [2018/09/30 10:28] – [3.1. Modifying the Radio Parameters] samer
@@ Line 71: / Line 71: @@
 Take a look at the source code in ''rf95_client.ino'' and ''rf95_server.ino''. Particularly, the ''setup'' function configures the radio parameters of your LoRa devices:
-  * Central frequency (freq)
+  * Central frequency
-  * Spreading Factor (SF)
+  * Spreading Factor
-  * Bandwidth (Bw)
+  * Bandwidth
-  * Coding Rate (CR)
+  * Coding Rate
-  * Transmit power (Pow)
+  * Transmit power
 <code c++>
@@ Line 159: / Line 159: @@
 ===== -. Coverage Challenge =====
-In this section, you are required to establish a record of LoRa coverage. Some rules must be followed to validate the record:
+In this section, you are required to establish a record of LoRa coverage. You can certainly unleash your scientific imagination, but some rules must be followed to validate the record:
   * Direct transmission between the two devices is only considered.
@@ Line 166: / Line 166: @@
 <WRAP center round help 100%>
-  * Provide the expression of the link budget.
+  * Compute the Fresnel zone for your transmission.
-  * Draw the RSSI values as a function of the distance.
+  * Provide the expression of the link budget and compute the received power using two different pathloss models.
-  * What is the path loss exponent?
+  * Compare the received power obtained experimentally with the theoretical results.
-  * Using regressions, compute a value of the path loss exponent. Analyze the result.
+  * Write an article (blog, wiki, ...) to describe your experiment.
-  * Compare the obtained sensitivity with the theoretical results computed in the previous section.
 </WRAP>
 ===== -. Grading =====