Abstract
A Wireless Data Modem using Tele Typewriter Signals and Frequency Shift Keying (FSK) Modulation Technique is proposed here in order to neglect Electromagnetic Interference with minimal Bit Error Rate. The wireless modem designed here consists of 5 stages namely a) Modulation stage, b) Transmission stage, c) Reception stage, d) Filtering stage and e) Demodulation stage. The Modulation stage consists of IC555 Timer generating FSK signal. Transmission is wireless and is achieved using IRLED. The transmitted signal is received using a spectrally matched Phototransistor. The Filtering stage consists of a second order low pass filter. Demodulation is achieved using IC565. The modem designed here makes use of Tele Typewriter signals which neglects conduction and radiation interference from external environment. The Probability of error for this wireless data modem is better with minimal Bit Error Rate. Hence the whole setup is stable and accurate device for transmitting digital data.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
McDermott, T.: Wireless Digital Communications: Design and Theory, Tucson Amateur Packet Radio Corporation, Tucson, Arizona (1996)
Peebles, P.Z.: Digital Communication Systems. Prentice-Hall, Englewood Cliffs (1987)
Haykins, S.: Communication Systems, 4th edn. John Wiley, Chichester (2001)
Proakis, J.G.: Digital Communication, 3rd edn. McGraw-Hill, New York (1995)
Taub, Schilling: Principles of Digital Communication. Tata McGraw-Hill, New York (2003) (28th reprint)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Annadurai, C., MuthuKumaran, D., Charithartha Reddy, C., Kanagasabapathy, M. (2010). Avoidance of Electromagnetic Interference in Modem with Minimal Bit Error Rate Using Tele Typewriter Signals. In: Das, V.V., Vijaykumar, R. (eds) Information and Communication Technologies. ICT 2010. Communications in Computer and Information Science, vol 101. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15766-0_109
Download citation
DOI: https://doi.org/10.1007/978-3-642-15766-0_109
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-15765-3
Online ISBN: 978-3-642-15766-0
eBook Packages: Computer ScienceComputer Science (R0)