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exploring_lora [2018/10/04 17:36] – [2. Theoretical Study] melhemexploring_lora [2018/10/04 17:43] – [2. Theoretical Study] melhem
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   * How does the spreading factor impact the coverage of a LoRa transmitter?    * How does the spreading factor impact the coverage of a LoRa transmitter? 
   * What is the transmission bit rate for each of the following configurations of your LoRa device? Explain your computation.   * What is the transmission bit rate for each of the following configurations of your LoRa device? Explain your computation.
-  ** Configuration 1: channel bandwidth = 125 kHz, spreading factor = 7, coding rate = 4/5. +    * Configuration 1: channel bandwidth = 125 kHz, spreading factor = 7, coding rate = 4/5. 
-  ** Configuration 2: channel bandwidth = 500 kHz, spreading factor = 7, coding rate = 4/5. +    * Configuration 2: channel bandwidth = 500 kHz, spreading factor = 7, coding rate = 4/5. 
-  ** Configuration 3: channel bandwidth = 125 kHz, spreading factor = 12, coding rate = 1/2.+    * Configuration 3: channel bandwidth = 125 kHz, spreading factor = 12, coding rate = 1/2.
   * Compute the receiver sensitivity, assuming the following parameters: channel bandwidth = 125 kHz, spreading factor = 7, coding rate = 4/5, bit error rate (BER) target = 10<sup>-4</sup>, and receiver noise figure = 6 dB. Refer to this {{ :1705.05899.pdf | article}} to determine the mapping between the BER and the SNR.   * Compute the receiver sensitivity, assuming the following parameters: channel bandwidth = 125 kHz, spreading factor = 7, coding rate = 4/5, bit error rate (BER) target = 10<sup>-4</sup>, and receiver noise figure = 6 dB. Refer to this {{ :1705.05899.pdf | article}} to determine the mapping between the BER and the SNR.
   * Compare the computed sensitivity to that provided by the {{ :an1200.22.pdf |Semtech Application Note AN1200.22}} for the same parameters.   * Compare the computed sensitivity to that provided by the {{ :an1200.22.pdf |Semtech Application Note AN1200.22}} for the same parameters.
exploring_lora.txt · Last modified: 2021/10/20 12:52 by samer