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Memorias de investigación
Ponencias en congresos:
A High Spectrum Efficiency Transmission Scheme. ScalCom-EmbeddedCom 2009
Año:2009
Áreas de investigación
  • Lenguaje de programación
Datos
Descripción
In order to improve the transmission performance in inter-symbol interference channel, a controlled inter-symbol overlapping transmission scheme to obtain high frequency efficiency, which is called inter-symbol overlapping transmission (ISOT), is studied. ISOT allows K symbols to be simultaneously transmitted without increasing channel bandwidth, and the symbol transmission interval can be decreased to Ts/K, assuming that Ts is the symbol duration. In additive white gaussian noise(AWGN) channel, we study the ISOT system which symbol rate is greater than system bandwidth.Though inter-symbol overlapping transmission doesn¿t increase channel bandwidth, the spectrum efficiency can be increased by K times in theory. Simulation results show that ISOT can achieve higher spectrum efficiency compared with high dimension modulation, even if low dimension BPSK or QPSK modulation is used. Furthermore, we integrate ISOT with single-carrier frequency domain equalization(SCFDE) and evaluate its BER performance. Simulation results show that ISOT integrated with SC-FDE has significant performance improvement comparing to SC-FDE with 2K-QAM, while ISOT uses QPSK modulation to transmit K symbols simultaneously. Simulation also shows that the more the symbols overlapping, the more the performance improvement. Inter-symbol overlapping transmission scheme can be used in mobile device and used as a uplink transmission technology in mobile communication systems,such as B3G or 4G, to provide higher spectrum efficiency.
Internacional
Si
Nombre congreso
ScalCom-EmbeddedCom 2009: International conference on scalable computing and communications. The 8th Conference on embedded computing.
Tipo de participación
960
Lugar del congreso
Dalian, China
Revisores
Si
ISBN o ISSN
978-0-7695-3825-9
DOI
10.1109/embeddedCom-SCalCom.2009.38
Fecha inicio congreso
25/09/2009
Fecha fin congreso
27/09/2009
Desde la página
167
Hasta la página
172
Título de las actas
IEEE Computer Society: International conference on scalable computing and communications. The 8th Conference on embedded computing.
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Tonghong Li (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Distributed Systems Labs (LSD) Laboratorio de sistemas distribuidos
  • Departamento: Lenguajes y Sistemas Informáticos e Ingeniería de Software
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