Title :
Subspace MMSE receiver for multicarrier CDMA
Author :
Namgoong, June ; Wong, Tan F. ; Lehnert, James S.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
We consider subspace-based MMSE multiuser detection for multicarrier code division multiple access (MC-CDMA) in Rayleigh fading channels. The knowledge of the fading coefficients for all the carriers and the timing delay of the desired user is needed to construct the MMSE detector. A subspace-based channel estimation technique is developed to obtain the required information. Numerical results show that the proposed algorithm is robust to fading and moderate near-far situations
Keywords :
Rayleigh channels; code division multiple access; delays; least mean squares methods; multiuser channels; parameter estimation; radio receivers; signal detection; timing; MC-CDMA; MMSE multiuser detection; Rayleigh fading channels; code division multiple access; fading; fading coefficients; multicarrier CDMA; near-far situations; subspace MMSE receiver; subspace-based channel estimation; timing delay; Channel estimation; Delay; Detectors; Fading; Multiaccess communication; Multicarrier code division multiple access; Multiuser detection; Rayleigh channels; Robustness; Timing;
Conference_Titel :
Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5668-3
DOI :
10.1109/WCNC.1999.797792
