MAXIMUM DATA RATE DETERMINATION OF A TELEPHONE TRANSMISSION CHANNEL

Abstract

The transmission channel is an electrical medium that bridges the distance from the source to the destination. It may be apair of wires, a coaxial cable, a radio path, or an optical fiber. Every channel introduces some amount of transmission loss orattenuation and, therefore, the transmitted power progressively decreases with increasing distance. The signal is alsodistorted in the transmission channel because of different attenuation at different frequencies. Signals usually containcomponents at many frequencies and if some are attenuated and some are not, the shape of the signal changes. This change isknown as distortion. Note that a transmission channel often includes many speech or data channels that are multiplexed intothe same cable pair or fiber. In this paper we present the determination of maximum data rate of a telephone channel.Keywords: Bandwidth, Data Rate, Symbol Rate, Transmission Channel