Broadband system use modulation techniques to reduce the effect of noise in the environment. Broadband transmission employes multiple channel unidirectional transmission using a combination of phase and amplitude modulation while in baseband is a digital signal is transmitted on the medium using one of the signal codes like NRZ, RZ, Manchester biphase Mcode, etc. is called as a baseband transmission. Here this post gives information about the difference between broadband and baseband transmission to better understand this topic.
Baseband transmission:
- Digital signaling.
- Frequency division multiplexing is not possible.
- The baseband is the bi-directional transmission.
- The entire bandwidth is for single signal transmission.
- Short distance signal traveling.
- Ethernet is using baseband for LAN.
- Baseband transmission works well with bus topology.
- Manchester and differential Manchester encoding is used for baseband transmissionEntire bandwidth of the cable are consumed by a single signal in a baseband transmission.
Broadband transmission:
- Analog signaling.
- Transmission of data is unidirectional.
- The signal traveling distance is long.
- Frequency division multiplexing possible.
- Simultaneous transmission of multiple signals over different frequencies.
- Used to transmit cable TV to premises.
- The broadband transmission used with a bus as well as a tree topology.
- PSK encoding must be used.
- The signals are sent on multiple frequencies and allow all the multiple signals are sent simultaneously in a broadband transmission.