Digital Radio Broadcasting for Community Radios Using Pseudo-random Codes

Fabrício de Araújo Carvalho, Fernando Walter

Departamento de Telecomunica??es, Instituto Tecnológico de Aeronáutica, S?o José dos Campos, Brazil.

DOI: 10.4236/cn.2013.53B2068                

Abstract

This paper aims to present a digital radio broadcasting system that explores the advantages of pseudo-random codes. In this context, a transmitter and its dual receiver are able to reuse frequency spectrum bands without interfering on other existing communication systems. It is proposed a communication system that allows radio broadcasting with the following characteristics: lower transmission power, new communication channels and digital signal processing techinques to add positioning services in two dimensions.

Keywords

Digital Radio Broadcasting; Software Defined Radio; Spectral Efficiency; Trilateration Positioning

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	J. B. Y. Tsui, Fundamentals of Global Positioning System Receivers, A software approach. Wiley Interscience Publicantion, 2000. doi:10.1002/0471200549
[2]	F. A. Carvalho, Alexandre, B. V. Oliveira and E. F. Walter, “Receptor GPS em Software. In: 25°Simpósio Brasileiro de Telecomunicações – XXV SBrT 2007, Recife, PE, Brasil, set, 03 a 07.
[3]	Carvalho and F. A. e F. Walter, “Receptor GPS por Software em Tempo Real. Parte I: Geraçõo dos Sinais”, Anais do 12O Encontro de Iniciaçõo Científica e Pós-Graduaçõo do ITA – XII ENCITA / 2006, São José dos Campos, SP, Brasil, out., 16 a 19.
[4]	Carvalho and F. A. e F. Walter, “Receptor GPS Por Software em Tempo Real. Parte II: Correlator”, Anais do 12O Encontro de Iniciaçõo Científica e Pós-Graduaçõo do ITA – XII ENCITA / 2006, São José dos Campos, SP, Brasil, out., 16 a 19.
[5]	Parkinson, W. Bradford, Jr. Spilker and J. James, Global Positioning System: Theory and Applications- vol 1. Published by the American Institute of Aeronautics and Astronautics, Inc. Hopfield model.