Calculating Energy Per Bit from Symbols Constellation

In summary, the conversation discusses how to calculate the energy per bit in a constellation of symbols. The suggestion is to calculate the area formed by linking external points in the space signal and dividing it by the number of bits in the symbols. The question of whether this calculation is for transmitted energy per bit is also brought up.
  • #1
kususe
22
0
In general, if I have a constellation of symbols, how can i calculate the energy por bit?
I think I should calculate the area of figure which is formed linking external points in the space signal and divide it for the numer of bit compose the symbols.

Right?
 
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  • #2
kususe said:
In general, if I have a constellation of symbols, how can i calculate the energy por bit?
I think I should calculate the area of figure which is formed linking external points in the space signal and divide it for the numer of bit compose the symbols.

Right?

Do you mean transmitted energy per bit? You would need the average transmit power and data rate for that, no?
 

1. What is the purpose of calculating energy per bit from symbols constellation?

The purpose of calculating energy per bit from symbols constellation is to determine the minimum amount of energy required to transmit a single bit of information over a given communication channel. This calculation helps in optimizing the performance and efficiency of communication systems.

2. How is energy per bit calculated from symbols constellation?

The energy per bit is calculated by dividing the total energy of a signal by the number of bits represented by the symbols in the constellation. This can be represented by the equation Eb = Es / log2(M), where Eb is the energy per bit, Es is the signal energy, and M is the number of symbols in the constellation.

3. What factors can affect the energy per bit calculation from symbols constellation?

Some factors that can affect the energy per bit calculation include the signal-to-noise ratio (SNR), modulation scheme, channel bandwidth, and the presence of noise or interference in the communication channel. These factors can impact the overall performance and efficiency of the communication system.

4. How does the energy per bit calculation relate to the bit error rate (BER)?

The energy per bit calculation is directly related to the bit error rate (BER) in a communication system. A lower energy per bit value results in a lower BER, indicating a higher quality and more reliable transmission. As the energy per bit increases, the BER also increases, leading to a decrease in the overall performance of the system.

5. How can the energy per bit calculation be used to optimize communication systems?

The energy per bit calculation can be used to optimize communication systems by helping in the selection of the most suitable modulation scheme, channel coding, and transmission power for a given communication channel. It also aids in the design and improvement of communication systems to achieve higher data rates and better performance while minimizing energy consumption.

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