Introduction
Networking has been enhanced with the introduction of techniques to enhance the techniques that have been used in the networks. The process of communication in various channels undergoes a long process. This paper will focus on the multiplexing and how it enhances communication. It has a role it plays in networking (Abrams, 2004).
The term multiplexing as refers to the process of converting many data communication lines or signals into a single data communication line or signal for transmission (www.computing.net) the main aim is to optimize utilization of the transmission channels given that several users share the same channel (Stallings, 2009). The conversations that we make regularly on our telephone lines transmit several conversations at the same time using the multiplexing concept. Frequency division multiplexing is a scheme of multiplexing where the band-width that is available in a physical medium is divided into smaller independent logical channels each containing a small channel. It is simply referred to as a technique of using a number of carrier frequencies modulated by a speech signal which is independent .In this form of data transmission, the number of simultaneous transmissions are determined by the rate of data transmission and the communication type (Bey-Mille, 2008).
Frequency division multiplexing is a very important aspect of data transmission technique because it contains some features that enable it to minimize interference in transmission of data. First, in the frequency division multiplexing, the noise problem for analog communication has lesser effect. This is enhanced by allocating a frequency of 400Hz to each channel to ensure that they are kept well separated. Subsequently, and by a different amount each, the voice channels are raised and then combined since the same portion of the spectrum cannot be occupied by any two channels (Fisch, & White, 2010). The filters do not have sharp edges and therefore although there will be some gaps between the channels, there exists some overlaps between adjacent channels. A strong spike indicated by the overlap results into a non-thermal noise that can be felt by the adjacent channel. Secondly, the frequency division multiplexing schemes in practice globally is standardized to some extent. For example, the widespread standard is 12400-Hz each voice channels multiplexed into 60 KHz to 108 KHz (DiMarzio, 2006).
Conclusion
Multiplexing is a technique that has been seen to enhance networking and the communication technologies. Dividing the communication spectrum enhances the utilization of the communication channel. Multiplexing has been developed to ensure that better use of communication spectrum.
Reference
Abrams, M. D. (2004). Computer networks: a tutorial. University of Michigan: IEEE Computer Society Press.
Bey-Mille, B. (2008). FCS Data Communication and Networking L4. Pearson South Africa.
DiMarzio, J. (2006). Network Architecture and Design: A Field Guide for It Consultants. New York: Sams Publishing.
Fisch, E., & White, G. (2010). Securing Computer Networks: Anaysis Design and Implementation. CRC PressINC.
Stallings, W. (2009).Business Data Communications. (6th edition). Upper Saddle River, NJ: Prentice Hall.
