Difference Between Bit Rate and Baud Rate
Both Bit rate and Baud rate are generally used in data communication to measure the speed of data. Bit rate refers to the number of bits transmitted per second in a communication system, while baud rate refers to the number of signal units or symbols transmitted per second. In some cases, multiple bits can be encoded in a single symbol, making the bit rate higher than the baud rate.
What is the Bit Rate?
Bit rate refers to the number of bits transmitted per second and is, therefore, a measure of the rapidity at which data is being transmitted over a communication channel. It is normally expressed in Kbps, Mbps, or Gbps. It will, therefore, give the relative efficiency of computer processing or handling data.
Bit Rate = Baud Rate × No. of Bits per BaudWhat is the Baud Rate?
It is defined to be the number of signal changes or symbols sent per second over a communication channel. This decides the extent to which a transmission medium, such as a wire or a wireless spectrum, is capable of changing its state in one second. Every such change can represent one or more bits of data.
Baud Rate = Bit Rate / No. of Bits per BaudThe baud rate is important in appreciating the amount of bandwidth required during any given transmission. A higher baud rate may signal a more frequent change in a given signal and thus change the clarity and speed of data transmission.
Difference Between Bit Rate and Baud Rate
Bit Rate | Baud Rate |
|---|---|
Bit rate is defined as the transmission of a number of bits per second. | Baud rate is defined as the number of signal units per second. |
Bit rate is also defined as per second travel number of bits. | Baud rate is also defined as per second number of changes in signal. |
Bit rate emphasized computer efficiency. | While the baud rate emphasized data transmission. |
The formula of Bit Rate is: =Baud Rate × Number of Bits per Baud | The formula of Baud Rate is: = Bit Rate / Number of Bits per Baud |
Bit rate is not used to decide the requirement of bandwidth for transmission of the signal. | While baud rate is used to decide the requirement of bandwidth for transmission of the signal. |
Bit Rate cannot determine the bandwidth. | Baud rate can determine the amount of bandwidth necessary to send the signal. |
It counts the number of bits traveled per second such as Kbps, Mbps, Gbps, etc | It counts how many times the state of a signal is changing. |
Conclusion
Knowledge of Bit Rate and Baud Rate helps a lot in the optimization of data communication and transmission. The bit rate is the amount of data transferred per second, while the baud rate is the number of signal changes per second, which affects the bandwidth required for the transmission. Thus, applying these concepts correctly, one is guaranteed to improve performance and reliability in digital communication systems.
