Title :
Circular Real Sine/Cosine Gabor Transform Modulator for Power Line Communication
Author :
Turcza, P. ; Zbydniewski, L. ; Zielinski, T.P.
Author_Institution :
AGH Univ. of Sci. & Technol., Krakow
Abstract :
The paper addresses a problem of designing efficient multi-carrier modulation/demodulation scheme appropriate for non-stationary PLC channel characterized by different types of synchronous and asynchronous impulsive noise. In such circumstances an applied transmultiplexer scheme should minimize a spectral leakage of wide-band disturbances to many carriers. In the paper application of circular (periodic) real sine/cosine-modulated Gabor transform with window having high sidelobes´ attenuation is proposed. The presented approach is compared against standard OFDM modulator, and its advantages are shown, coming from usage of appropriate time-frequency data tiling within each transmitted frame.
Keywords :
OFDM modulation; carrier transmission on power lines; impulse noise; transforms; transmultiplexing; asynchronous impulsive noise; circular real sine/cosine Gabor transform; multicarrier modulation/demodulation scheme; power line communication; spectral leakage; standard OFDM modulator; synchronous impulsive noise; time-frequency data tiling; transmultiplexer scheme; wide-band disturbances; Background noise; Colored noise; DSL; Demodulation; Narrowband; Noise level; OFDM modulation; Power line communications; Programmable control; Time frequency analysis;
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
DOI :
10.1109/GLOCOM.2007.32
