exploring_lora
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exploring_lora [2018/09/27 10:29] – [5. Theoretical Analysis] samer | exploring_lora [2018/09/27 10:33] – samer | ||
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For Arduino Mega 2560, additional drivers for Microsoft Windows can be installed from [[http:// | For Arduino Mega 2560, additional drivers for Microsoft Windows can be installed from [[http:// | ||
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+ | ===== -. Theoretical Analysis ===== | ||
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+ | In this section, you will perform a theoretical assessment of the performance of LoRa modulation. You will later compare this theoretical results to the experimental ones as in a typical scientific study. | ||
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+ | <WRAP left round help 100%> | ||
+ | * What is the relation between processing gain and spreading factor in LoRa modulation? Explain. | ||
+ | * How does the spreading factor impact the coverage of a LoRa transmitter? | ||
+ | * For each of the three possible configurations of your LoRa module, what is the transmission bit rate? Explain your computation. | ||
+ | * Compute the receiver sensitivity, | ||
+ | * Compare the computed sensitivity to that provided by the {{ : | ||
+ | </ | ||
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===== -. Running Basic Sketches ===== | ===== -. Running Basic Sketches ===== | ||
Start by setting the central frequency of the LoRa modules. For this, open the '' | Start by setting the central frequency of the LoRa modules. For this, open the '' | ||
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[{{ : | [{{ : | ||
[{{ : | [{{ : | ||
- | ===== -. Theoretical Analysis ===== | ||
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- | In this lab | ||
- | <WRAP left round help 100%> | ||
- | * What is the relation between processing gain and spreading factor in LoRa modulation? Explain. | ||
- | * How does the spreading factor impact the coverage of a LoRa transmitter? | ||
- | * For each of the three possible configurations of your LoRa module, what is the transmission bit rate? Explain your computation. | ||
- | * Compute the receiver sensitivity, | ||
- | * Compare the computed sensitivity to that provided by the {{ : | ||
- | </ | ||
===== -. Modifying the Radio Parameters ===== | ===== -. Modifying the Radio Parameters ===== | ||
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In the remainder of this lab, you will conduct measurements to validate the obtained theoretical receiver sensitivity. | In the remainder of this lab, you will conduct measurements to validate the obtained theoretical receiver sensitivity. | ||
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===== -. Performance Evaluation ===== | ===== -. Performance Evaluation ===== | ||
In the following, you will design and implement a set of scenarios that enable to evaluate the performance of the LoRa modulation. As you will deal with scientific assessment, you are required to use scientific tools to show the results. You have the choice between [[http:// | In the following, you will design and implement a set of scenarios that enable to evaluate the performance of the LoRa modulation. As you will deal with scientific assessment, you are required to use scientific tools to show the results. You have the choice between [[http:// | ||
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==== -. Time on Air ==== | ==== -. Time on Air ==== | ||
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* What type of mathematical models enables to theoretically compute the PER? | * What type of mathematical models enables to theoretically compute the PER? | ||
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==== -. Coverage ==== | ==== -. Coverage ==== | ||
exploring_lora.txt · Last modified: 2021/10/20 12:52 by samer