WiFi abbreviations
From Teknologisk videncenter
Abbreviations
Abb. | meaning | Notes | |||
---|---|---|---|---|---|
ASK | Amplitude Shift Keying | Keying 0's and 1's by altering the radio carriers amplitude | |||
FSK | Frequency Shift Keying | Keying 0's and 1's by altering the radio carriers frequency | |||
PSK | Phase Shift Keying | Keying 0's and 1's by altering the radio carriers phase | |||
MPSK | Multiple Phase Shift Keying | Keying more than one bit at a time by using four or more phases | |||
RF | Radio Frequency | Rate of oscillation in the range of around 3 kHz to 300 GHz corresponding to radio waves | |||
FSPL | Free Space Path Loss | Loss of amplitude of the signal in free space over distance | |||
ISI | Intersymbol Interference | Signal misinterpreted by receiver due to multipath signals out of phase | |||
EIRP | Equivalent isotropically radiated power | The highest RF signal strength transmitted from a particular antenna. Often expressed in dBm | RSSI | Received Signal Strength Indicator | power level received by the receiver radio in dbm |
mW | Milli Watt | 0,001 Watt | |||
dBm | Decibel milliwatt | Decibel relative to 1 mW of power. | |||
dBi | Decibel isotropic | Antenna gain compared to a theoretical isotropic antenna | |||
dBd | Decibel dipole | Antenna gain compared to a theoretical isotropic antenna. Add 2,14 dB to get dBi |