Wi-Fi Word of the Day (WOTD)

This is a sample definition for a sample word. Words of the Day are selected from the Words of the Day section.

Symbol (WF)

- basically, the rate at which the state of a circuit changes. If a circuit can carry two bits per second, then its symbol rate is two. In other words, if the circuit can only carry two bits (0 and 1) such as in BPSK (which only uses two phases to represent 0 and 1), then its symbol rate is equal to its bit rate (1 bit per symbol). Different modulation methods carry multiple bits per symbol. In modulation methods such as QPSK for example where the circuit can carry four different bit patterns (00,01,10,11) using 4 different phase shifts, the encoding rate doubles or the bit rate becomes twice the symbol rate (2 bits per symbol). In more complex modulation methods, the symbol rate gets higher and bit rate even higher. Symbol rate, however, is not always the same as bit rate. AKA: Baud rate.

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