Howtosignalprocessing
- What is spreading factor in spread spectrum?
- What is spreading factor in LoRa?
- What is LoRa coding rate?
What is spreading factor in spread spectrum?
The ratio between the bandwidth of the user signal and the transmit bandwidth is called the "spreading factor".
What is spreading factor in LoRa?
The spreading factor SF in LoRa is the ratio between symbol rate and chip rate : . LoRa employs six spreading factors from 7 to 12 that provide some sort of orthogonality in data transmission (collision-free) occurring on the same frequency.
What is LoRa coding rate?
The coding rate refers to the proportion of transmitted bits that actually carry information. Coding rate can be 6/8, 4/8, etc… So if CR is 4/8 we are transmitting twice as many bits as the ones containing information.
