TELECOMMUNICATION ~ Difference between broadband and baseband
The difference between baseband and broadband transmission is that in baseband transmission, the entire bandwidth of the cable is used by a single signal. Conversely, in broadband transmission, multiple signals are sent simultaneously on multiple frequencies using a single channel.
Definition of baseband transmission:
Baseband transmissions typically use digital signaling over a single wire; the transmissions themselves take the form of electrical pulses or light. The digital signal used in baseband transmission occupies the entire bandwidth of the network medium to transmit a single data signal. Baseband communication is bidirectional, allowing computers to send and receive data using a single cable. However, sending and receiving cannot occur on the same wire at the same time
Using baseband transmissions, it is possible to transmit multiple signals over a single cable using a process known as multiplexing. Baseband uses time division multiplexing (TDM), which divides a single channel into time slots. The key element of TDM is that it does not change the way baseband transmission works, only the way the data is placed on the cable.
Definition of broadband transmission:
While baseband uses digital signaling, broadband uses analog signals in the form of optical or electromagnetic waves on multiple transmission frequencies. For signals to be sent and received, the transmission media must be divided into two channels. Alternatively, two cables can be used: one to send and one to receive transmissions.
Multiple channels are created in a broadband system using a multiplexing technique known as frequency division multiplexing (FDM). FDM allows broadband media to accept traffic going in different directions on the same media at the same time.
Key differences between baseband and broadband transmission:
- Baseband transmission uses digital signaling while broadband transmission uses analog signaling.
- Both bus and tree topologies work well with broadband transmission. On the other hand, for baseband transmission bus topology works well.
- Baseband transmission involves manchester and differential manchester coding. Broadband transmission, on the other hand, does not use any digital coding but rather uses PSK (Phase Shift Keying) coding.
- In baseband transmission, the signals cover shorter distances. In contrast, in broadband transmission, the signals can be carried over a longer distance.
In short:
Baseband and broadband transmissions are the types of signaling. Baseband transmission uses digital signaling and involves a digital signal or an electrical pulse that can be carried in a physical medium such as wires. Broadband transmission uses analog signaling and involves optical signals or signals in the form of an electromagnetic wave. Baseband transmission uses the entire channel bandwidth to transmit a signal, while in broadband transmission, the bandwidth is divided into varying frequency ranges to transmit different signals at the same time.
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