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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2010.tde-11082010-162504
Document
Author
Full name
Amanda Souza de Paula
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2010
Supervisor
Committee
Panazio, Cristiano Magalhães (President)
Burt, Phillip Mark Seymour
Lopes, Renato da Rocha
Title in Portuguese
Um estudo comparativo entre os sistemas OFDM e SCCP.
Keywords in Portuguese
Codificação
Equalização
Modulação digital
Abstract in Portuguese
Este trabalho trata da comparação entre os sistemas OFDM (orthogonal frequency division multiplexing) e SCCP (single carrier with cyclic prefix). Tais sistemas são analisados em função da ordem da modulação, da sensibilidade em relação à taxa de codificação de canal e do tipo de entrelaçamento utilizado. A comparação é efetuada através da adoção de um arcabouço que provê uma abordagem universal para o tratamento de ambos os sistemas. São obtidos resultados teóricos, explorando características de convexidade de funções, e resultados a partir de simulação Monte Carlo. Os sistemas são comparados, principalmente, em termos de BER (bit-error rate). Entretanto, também são realizadas comparações em termos de probabilidade de outage por cutoff rate e da SNR (signal to noise ratio) efetiva na saída do equalizador. Finalmente, os sistemas ainda são avaliados quanto à sensibilidade a erros de estimação de canal.
Title in English
A comparative study between the OFDM and SCCP systems.
Keywords in English
Coding
Digital modulation
Equalization
Abstract in English
This work deals with the comparison between the OFDM (orthogonal frequency division multiplexing) and SCCP (single carrier with cyclic prefix). These systems are analyzed as a function of the modulation order, the sensitiveness to the channel coding rate and to the interleaver configuration. The comparison is accomplished by means of a system model that leads to an universal framework to both analyzed systems. Theoretical results are obtained exploring convexity properties of functions. In addition, some results provided by Monte Carlo simulation are also presented to complement the analysis. The systems are compared mainly in terms of the BER (bit-error rate). Moreover, comparisons in terms of outage probability obtained by cutoff rate and in terms of the effective SNR (signal to noise ratio) at the equalizer output are also provided. Finally, the systems will be compared when channel estimation error are presented at the receiver.
 
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Publishing Date
2010-09-15
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • PAULA, A. S., and C. M. Panazio. A comparison between OFDM and single-carrier with cyclic prefix using channel coding and frequency-selective block fading channels. Journal of communication and information systems , 2011, vol. 2011, p. 19-29.
  • PAULA, A. S., and C. Panazio. An uncoded BER comparison between DFE-SCCP and OFDM using a convex analysis framework. In IEEE International Symposium on Circuits and Systems (ISCAS), Rio de Janeiro, 2011. Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS)., 2011.
  • PAULA, A. S., e C. M. Panazio. Performance comparison between single-carrier and OFDM using the cutoff rate. In IEEE/SBrT International Telecommunications Symposium, Manaus, 2010. Proceedings of the International Telecommunications Symposium., 2010.
  • C. M. Panazio, and PAULA, A. S. Influence of Channel Frequency Selectivity and Modulation Order on the Performance Difference Between DFE-SCCP and OFDM. In XXIX Simpósio Brasileiro de Telecomunicações, Curitiba, 2011. XXIX Simpósio Brasileiro de Telecomunicações., 2011. Available from: http://www.sbrt.org.br/sbrt2011.
  • PAULA, A. S., and PANAZIO, C. M. A robustness and performance comparison between Cyclic Prefixed Single-Carrier and OFDM systems. In International Workshop on Telecommunications, São Paulo, 2009. Proceeding of the International Workshop on Telecommunications 2009., 2009. Available from: http://iwt09.inatel.br/iwt.
  • PAULA, A. S., e C. M. Panazio. Efeito do entrelaçador na comparação de desempenho de sistemas OFDM e SCCP. In XXVII Simpósio Brasileiro de Telecomunicações, Blumenau, 2009. Anais do XXVII Simpósio Brasileiro de Telecomunicações., 2009. Dispon?vel em: http://www.furb.br/sbrt2009.
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