Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Citado por Google
- Similares en SciELO
- Similares en Google
Compartir
Ingeniería e Investigación
versión impresa ISSN 0120-5609
Resumen
TORRES NOVA, Juan Mario y PAZ PENAGOS, Hernán. Studying and comparing spectrum efficiency and error probability in GMSK and DBPSK modulation schemes. Ing. Investig. [online]. 2008, vol.28, n.3, pp.75-80. ISSN 0120-5609.
Gaussian minimum shift keying (GMSK) and differential binary phase shift keying (DBPSK) are two digital modulation schemes which are -frequently used in radio communication systems; however, there is interdependence in the use of its benefits (spectral efficiency, low bit error rate, low inter symbol interference, etc). Optimising one parameter creates problems for another; for example, the GMSK scheme succeeds in reducing bandwidth when introducing a Gaussian filter into an MSK (minimum shift keying) modulator in exchange for increasing inter-symbol interference in the system. The DBPSK scheme leads to lower error probability, occupying more bandwidth; it likewise facilitates synchronous data transmission due to the receivers bit delay when recovering a signal.
Palabras clave : spectrum efficiency; DBPSK modulation; GMSK modulation; error probability.