Abstract
The challenge of deploying orthogonal frequency division multiplexing (OFDM) for high-speed railways (HSRs) is associated with its high mobility and delay spread. These two conditions introduce loss of orthogonality between the OFDM subcarriers, hence, degrades the system performance. Although OFDM can provide high spectrum efficiency, but due to its inherited rectangular pulse shape, the frequency spectrum produced is not very well localized, which blocks its coexistence with other systems in adjacent carriers. Compared to the conventional OFDM, filtered OFDM (f-OFDM) has a lower out-of-band (OOB) interference and spectrum leakage. Therefore, f-OFDM is attractive to be implemented in high mobility applications such as in HSR, as considered here. By using the Hann and root-raised cosine (RRC) filters, simulation results show that f-OFDM provides better bit error rate (BER) and reduced OOB emission compare to conventional OFDM.
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.
