DocumentCode :
1751127
Title :
A novel partial sampling MMSE receiver for uplink multicarrier CDMA
Author :
Zong, Pingping ; Wang, Kunjie ; Bar-Ness, Yeheskel
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Volume :
1
fYear :
2001
fDate :
2001
Firstpage :
741
Abstract :
In a regular multicarrier CDMA (MC-CDMA) receiver, timing of the starting point of the desired signal must be found with small error in order to demodulate correctly the information carried by different subcarriers. This requires a complicated timing acquisition for each user in the receiver of the uplink MC-CDMA system due to the randomness of delays. We remove this requirement for the uplink receiver by providing a method using partial sampling demodulation. The proposed partial sampling minimum mean square error (MMSE) receiver is shown to have stronger capability of both interference suppression and near-far resistance than that of a regular symbol receiver The proposed receiver can be implemented adaptively by using a least-mean-square (LMS) algorithm. A training sequence is required to achieve initial adaptation
Keywords :
code division multiple access; demodulation; interference suppression; least mean squares methods; mobile radio; radio receivers; signal sampling; LMS algorithm; MC-CDMA; PCS; delays; interference suppression; minimum mean square error receiver; mobile terminals; near-far resistance; partial sampling MMSE receiver; partial sampling demodulation; personal communications system; signal starting point; training sequence; uplink multicarrier CDMA; using least-mean-square algorithm; Delay; Demodulation; Error correction; Interference suppression; Least squares approximation; Mean square error methods; Multiaccess communication; Multicarrier code division multiple access; Sampling methods; Timing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
ISSN :
1090-3038
Print_ISBN :
0-7803-6728-6
Type :
conf
DOI :
10.1109/VETECS.2001.944942
Filename :
944942
Link To Document :
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