Abstract
Digital television/terrestrial multimedia broadcasting (DTMB), announced as the Chinese digital television terrestrial broadcasting (DTTB) standard in August, 2006, recommends three PN padding modes as guard intervals (GI) and training sequences for both multi- and single-carrier block transmissions. The conventional channel estimation methods can be performed through either the subtraction of the pseudo-noise (PN) sequence or the cancellation of residual inter-symbol interference, which are quite complex. In this paper, a simple method is introduced to separate the PN sequence from the OFDM symbol and the channel impulse response (CIR) estimation can be obtained and updated via the reconstruction of the PN sequence in an iterative manner. Analysis shows that the proposed algorithm achieves low-complexity channel estimation and can be applied to the DTMB receiver directly. Simulation shows that the proposed algorithm works well under slow-fading broadcast channel even with long delay spread.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
