Abstract
In this paper, a chip-level MMSE frequency domain equalizer (FDE) is investigated for a cyclic-prefix CDMA (CP-CDMA) system. The multiple access interference (MAI) and inter chip interference (ICI) is reduced at the chip level before despreading. One code multiplexed pilot channel carries a higher power than dedicated channels and is utilized for channel estimation. It also brings high MAI to the other users. In this paper, the impact of imperfect channel estimation is studied and a pilot interference cancellation algorithm is proposed. We deploy a high power pilot channel to obtain good channel estimates, subsequently, the high MAI along with the pilot channel is removed by the proposed algorithm. Performance of the proposed algorithm is shown by computer simulations
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.
