Data Transmission via Signals Flashcards
(34 cards)
Issuing of signals along a network medium
Transmit
Process of transmitting signals
Transmission
A device with transmitting and receiving signals
Transreceiver
S________: A data transmission characteristic (analog signal and digital signal)
Signalling
A_____ signals: continyous wave form signals that changes smoothly over time
Analog
The strength of the analog signal is measured in voltage
Amplitude
F_______: The number of signal cycles in one second, measured in hertz
Frequency
W_______: The distance travelled in one signal cycle measured in meter
Wavelength
D______ signal: discrete wave form signals with limited number of amplitude values
digital signals
Properties of d_______ signals: amplitude, period, bit interval, bit rate, baud rate
digital signals
A_______: The strength of the signal, but limited well defined voltage states
Amplitude
P_____: Is the time taken by a signal in one complete cycle
period
B__ I______: It is the time to represent 1 bit
Bit interval
B__ R___: It is the total number of bits transmitted in 1 second
Bit Rate
B____ R___: It is the number of signal units per second
Baud Rate
Bit Rate = _____ ___ x (number of bits per baud)
baud rate
T________: The amount of data transmitted in the network per unit time
Throughput
B________: quantity of bits transmitted per second
Bandwith
M________: The modifying of characteristics of an analog signal to digital signal
Modem
A________ shift keying
Amplitude Shift Keying
F________ shift keying
Frequency shift keying
P____ shift keying
Phase shift keying
T___ D_______ Multiplexing: divides channel into multiple time intervals and its common in voice communication
time division multiplexing
F______ D______ Multiplexing: divides channel into multiple-sub-channels and use different frequency band for different sub-channels
Frequency division multiplexing