Performance of multicarrier CDMA systems with improved pilot-aided channel estimation

Author

Cardoso, Deolinda Fontes ; Backx, Fabian David ; Sampaio-Neto, Raimundo

Author_Institution

Center of Naval Syst. Anal.

fYear

2009

fDate

2-4 Feb. 2009

Firstpage

78

Lastpage

82

Abstract

This research investigates a simple procedure to improve the channel frequency response estimate for orthogonal multicarrier CDMA systems. The improvement is achieved by means of a precomputed matrix that projects the original discrete frequency response onto the subspace where the true frequency response lies. Analytical and computer simulations results reveal that the improvement on channel estimation has a higher impact on MC-CDMA performance than MC-DS-CDMA.

Keywords

channel estimation; code division multiple access; frequency estimation; matrix algebra; MC-CDMA; MC-DS-CDMA; computer simulation; matrix precomputation; orthogonal multicarrier CDMA system performance; pilot-aided channel frequency response estimation; Base stations; Channel estimation; Discrete Fourier transforms; Finite impulse response filter; Frequency estimation; Frequency response; Multiaccess communication; Multicarrier code division multiple access; Multipath channels; Performance analysis; MC DS CDMA CP; MC-CDMA CP; Pilot-Aided Channel Estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless On-Demand Network Systems and Services, 2009. WONS 2009. Sixth International Conference on

Conference_Location

Snowbird, UT

Print_ISBN

978-1-4244-3375-9

Electronic_ISBN

978-1-4244-3375-9

Type

conf

DOI

10.1109/WONS.2009.4801846

Filename

4801846