Communication networks

Basic element of Communication systems, data transmission mode, transmission media, network topologies, network types, communication protocols, network security mechanism.

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Elements of a Communication System Elements of a communication system The above figure depicts the elementsof a communication system. There are three essential parts of any communication system, the transmitter, transmission channel, and receiver. Each parts plays a particular role in signal transmission, as follows: The transmitter processes the input signal to produce a suitable … Read more Basic element of Communication systems, data transmission mode, transmission media, network topologies, network types, communication protocols, network security mechanism.

Challenges to Internal security through communication networks

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  Communication networks are a part of our critical information infrastructure. Communication networks refer to an interconnection of communicating entitiessuch as computers, laptops, mobiles, telephones etc. via which provides the basis for information exchange for all other sectors including voice, data, video, and Internet connectivity. Communication network should not be confused with the computer networkssuch as LAN, WAN etc. because … Read more Challenges to Internal security through communication networks