Network Transmission

The term Transmission hints at movement. It can be said that Transmission means moving a bunch of information units  in a certain time.

Transmission may be fast, or it may be slow. Fast Transmission is a guarantee of Network user satisfaction. Slow Transmission means problems. It is the objective of Network design to ensure fast transmission. Fast Transmission comes at a premium. Slow transmission has a penalty. It is undesirable. 

Transmission is of information. An information source can be a transmitter.Such information source is the origin of transmission. 

Networks help in information transmission. It helps to carry information from the transmitter to a receiver. The receiver is at the end-point. 

If Transmission is slow, it is painful. Slow Transmission creates problems. In case of slow transmission, the receiver will have to wait for long for the next information.

Suppose a receiver has fast receiving speed. If a transmitter has many things to transmit, the slow transmitter will increase the pain of a fast receiver. Because, a fast transmitter cannot be handled by a slow receiver. Yes, information will overflow from receiver.

This problem of slow transmission has a wise solution. When information is transmitted, transmission is allowed to continue. The receiver is not immediately activated. The transmitted information is allowed to be deposited in an intermediate empty object. This is a buffer. The information holding capacity of the intermediate empty object ( empty buffer ) is equal to the information pulling capacity of the receiver. 

Mind, the transmission speed is slow. So, the intermediate object will fill up slowly. After a certain time, slowly filling up, the intermediate object ( buffer ) will be full. When the intermediate object ( buffer ) is full, the receiver is alerted. The completely full intermediate object ( buffer ) transfers information to the receiver. 

We observe that the receiver is not activated for every information piece that is transmitted. The receiver comes into the picture only for less times. Only when the intermediate object ( buffer ) between transmitter and receiver is full. So, we have seen how a fast receiver adjusts with a slow transmitter. The intermediate object ( buffer ) works here.