Title :
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.
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;
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
DOI :
10.1109/WONS.2009.4801846
