Simulink-based implementation and performance analysis of TDS-OFDM in time-varying environments
Fargues, Monique P.
MetadataShow full item record
In this thesis, we develop simulink-based software models to implement and test the time-domain synchronous OFDM (TDS-OFDM) transmitter and receiver systems. This technique has been introduced in terrestrial digital broadcasting in the P.R.C., and it seems to be particularly suitable to highly mobile environments. The transmission channel is modeled as a time-varying Rayleigh multipath channel. Two standard transmission channels models are considered: the COST 207 model with 6-path typical urban (TU6) characteristics and the China test8 (CT8) model restricted to the 4-path characteristics only. Overall system performances are evaluated in terms of bit error ratio (BER) for different signal-to-noise ratio (SNR) levels in these two channel environments for mobile systems with various resulting Doppler shift levels. Results show the capabilities and limitations of this technology in estimating the time-varying transmission channel and reconstructing the transmitted data. Performances are also compared to those obtained by standard OFDM techniques, such as the one adopted by the digital video broadcasting terrestrial (DVB-T) standard.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Dessalermos, Spyridon. (Monterey, California. Naval Postgraduate School, 2005-06);This research concerns the continuing development of Seaweb underwater networking. In this type of wireless network the radio channel is replaced by an underwater acoustic channel which is strongly dependent on the physical ...
Ciocco, Timothy Michael (Monterey, California. Naval Postgraduate School, 1996-03);In this thesis, two LEO satellite systems with different multiple access schemes are analyzed. The first system, GLOBALSTAR, uses CDMA. Equations are developed to calculate the maximum capacity of one satellite, of one ...
Dessalermos, Spyridon. (Monterey, California. Naval Postgraduate School, 2011-06);This research concerns the development of an adaptive receiver for underwater communication. In this type of wireless link, the radio channel is replaced by an underwater acoustic channel, which is strongly dependent on ...