Transmission Technology
In actuality, transmission is the process of sending and distributing digital or analog information signals. Physical layer protocol tasks like modulation, demodulation, line coding, and many more are referred to as transmission technology in general. Higher-level protocol tasks like data compression and analog signal digitization may also be included.
Types of Transmission Technology in Computer Networks
There are two primary forms of transmission media:
- Broadcast Networks
- Point-to-Point Networks
1. Broadcast Networks
Using a one-to-all relationship, the broadcast sends a message to every node in the network. One datagram from a single sender is sent to every endpoint—possibly several—that is connected to the broadcast address.
When a broadcast encompasses a whole network subnet as its recipients, the network automatically duplicates datagrams as necessary to reach them all.
Additionally, because broadcast networks only verify and ensure that every node signal is essentially received by every other node in the network, they eliminate the complicated routing operations of switched networks. The broadcast network only has one communication channel for this reason.
Advantages of Broadcast Networks
- All of the computers in this network typically send and receive packets.
- In the network, multicasting is allowed.
- It is limitless. Events can also go on for however long is necessary.
- It guarantees more effective use of all available resources.
Disadvantages of Broadcast Networks
- It is unable to support a large number of devices.
- It prevents message customization.
Point-to-Point Networks
A specific type of secure private data connection known as a point-to-point network or point-to-point connection links two or more sites for the purpose of providing private data services. Additionally, it can be set up to typically transport data, phone, and internet services over a single point-to-point network.
It only describes the kind of connection that exists between two communication endpoints, or nodes. It is a connection between two machines. Broadcasting is the general term for point-to-point transmission having a single sender and recipient.
Advantages of Point-to-Point Networks
- The least amount of communication latency as compared to other types of network connections.
- Cheap choice if you only need to link two nodes.
- Very simple to maintain. If there is an issue with a wire, it can be replaced in a matter of seconds.
- Full use of the bandwidth of the underlying connecting link.
- Of all the several types of network topologies, this one is the most straightforward.
Disadvantages of Point-to-Point Networks
- There is just one client or server. Everyone will cease to work if one person fails. You are unable to utilize the network cluster. Unsuitable for any database management system.
- Useful only in situations where the two devices are close to one another, like when connecting a printer. The performance of the network is dependent only on one link.
- The network as a whole becomes inoperable if the link is down.
- Expanding topology to a vast area is not possible due to the requirement of a direct connection. For instance, two computers could be far away if there is a multistory building.
