Title :
Sea-trial results for cyclic-prefix OFDM with long symbol duration
Author :
Berger, Christian R. ; Gomes, João ; Moura, José M F
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
In this paper we report results from the Calibration and Communications Sea Trial 2010. We explain in detail the used cyclic-prefix orthogonal frequency division multiplexing (OFDM) signal design and adopted receiver processing, based on sparse channel estimation and intercarrier interference (ICI) equalization. We then focus on two phenomena that are not commonly treated in wireless communications literature, namely, colored noise due to (partially) untreated ICI and narrowband interference, and biased symbol estimates due to noisy channel estimates used in multi-phone combining.
Keywords :
OFDM modulation; channel estimation; equalisers; intercarrier interference; underwater acoustic communication; Calibration and Communications Sea Trial 2010; ICI equalization; adopted receiver processing; biased symbol estimates; colored noise; cyclic-prefix OFDM signal design; cyclic-prefix orthogonal frequency division multiplexing signal design; intercarrier interference equalization; long-symbol duration; multiphone combining; narrowband interference; noisy channel estimates; sea-trial results; sparse channel estimation; wireless communications; Channel estimation; Delay; Doppler effect; Interference; Peak to average power ratio; Receivers; Underwater acoustic; biased symbol estimates; colored noise; multicarrier transmission; sparse channel estimation;
Conference_Titel :
OCEANS, 2011 IEEE - Spain
Conference_Location :
Santander
Print_ISBN :
978-1-4577-0086-6
DOI :
10.1109/Oceans-Spain.2011.6003629
