Power allocation optimization for uplink MC-CDMA systems

Author

Saetang, Prajak ; Kunaruttanapruk, Suwich ; Jitapunkul, Somchai

Author_Institution

Dept. of Electr. Eng., Chulalongkorn Univ., Bangkok

fYear

2006

fDate

12-15 Dec. 2006

Firstpage

75

Lastpage

78

Abstract

In this paper, we consider the joint transmitter and receiver for uplink MC-CDMA systems. The equation of the MMSE joint transmitter-receiver is expressed. We apply an optimization technique by rewriting the equation of the joint transmitter and receiver for uplink MC-CDMA systems as second-order cone programming (SOCP) which can efficiently be solved numerically by the existing polynomial convergence software packages. Numerical examples show that the joint transmitter-receiver optimization yields the lower BER compared with the MMSE receiver for both perfect channel estimation and imperfect channel estimation case

Keywords

channel estimation; code division multiple access; error statistics; least mean squares methods; mobile radio; polynomials; radio links; transceivers; BER; MMSE joint transmitter-receiver; imperfect channel estimation; perfect channel estimation; polynomial convergence software packages; second-order cone programming; uplink MC-CDMA systems; Channel estimation; Digital signal processing; Downlink; Equations; Fading; Multiaccess communication; Multicarrier code division multiple access; Multiuser detection; OFDM; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Signal Processing and Communications, 2006. ISPACS '06. International Symposium on

Conference_Location

Yonago

Print_ISBN

0-7803-9732-0

Electronic_ISBN

0-7803-9733-9

Type

conf

DOI

10.1109/ISPACS.2006.364838

Filename

4212225