Review on Multiplexing Techniques in Bandwidth Utilization

Multiplexing is a method by which multiple analog message signals or digital data streams, coming from different sources are combined into one signal over a shared medium. In this paper, we present an overview of different multiplexing techniques in bandwidth utilization. We focus on the three well-known multiplexing technique used in bandwidth utilization which are Frequency-Division Multiplexing (FDM), Wavelength-Division Multiplexing (WDM) and Time-Division Multiplexing (TDM). We mainly discuss the multiplexing technique, features and structures. This paper also briefly discuss an applications involved in these multiplexing techniques and the advantages and disadvantages of these three multiplexing techniques. At the end of this paper, we summarize and make a comparison between FDM, WDM and TDM.