Received Signal Strength Indication
In telecommunications, Received Signal Strength Indicator (RSSI) is a measurement of the power present in a received radio signal.
RSSI is a generic radio receiver technology metric, which is usually invisible to the user of the device containing the receiver, but is directly known to users of wireless networking of IEEE 802.11 protocol family.
RSSI is often done in the intermediate frequency (IF) stage before the IF amplifier. In zero-IF systems, it is done in the baseband signal chain, before the baseband amplifier. RSSI output is often a DC analog level. It can also be sampled by an internal ADC and the resulting codes available directly or via peripheral or internal processor bus.
Read more about Received Signal Strength Indication: RSSI in 802.11 Implementations
Famous quotes containing the words received, signal, strength and/or indication:
“Biography, in its purer form, confined to the ended lives of the true and brave, may be held the fairest meed of human virtue—one given and received in entire disinterestedness—since neither can the biographer hope for acknowledgment from the subject, not the subject at all avail himself of the biographical distinction conferred.”
—Herman Melville (1819–1891)
“The experience of a sense of guilt for wrong-doing is necessary for the development of self-control. The guilt feelings will later serve as a warning signal which the child can produce himself when an impulse to repeat the naughty act comes over him. When the child can produce his on warning signals, independent of the actual presence of the adult, he is on the way to developing a conscience.”
—Selma H. Fraiberg (20th century)
“Weakness is a better teacher than strength. Weakness must learn to understand the obstacles that strength brushes aside.”
—Mason Cooley (b. 1927)
“Television could perform a great service in mass education, but there’s no indication its sponsors have anything like this on their minds.”
—Tallulah Bankhead (1903–1968)