Title :
Code Selection Method for Downlink MC-CDMA Over Frequency-Selective Fading Channel
Author :
Jao, Chin-Kuo ; Cheng, Yu-Chieh ; Wei, Shyue-Win
Author_Institution :
Grad. Inst. of Commun. Eng., Nat. Chi Nan Univ., Nantou
Abstract :
A spreading code-allocation procedure using simple least squares (LS) channel estimation is presented to reduce multiple-access interference (MAI) in downlink multicarrier code-division multiple-access (MC-CDMA) systems. The spreading codes chosen by the proposed method are in a consistent sequence.
Keywords :
channel allocation; channel coding; channel estimation; code division multiple access; fading channels; interference suppression; least squares approximations; code selection method; downlink MC-CDMA; downlink multicarrier code-division multiple-access system; frequency-selective fading channel; least square channel estimation; multiple-access interference reduction; spreading code-allocation procedure; Code-selection method; Walsh–Hadamard code; consistent sequence; least squares (LS) channel estimation; multicarrier code-division multiple access (MC-CDMA); multiple-access interference (MAI); spreading codes;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2008.918714
