Title :
Power allocation algorithm in MC-CDMA
Author :
Zhu, Jianming ; Bar-Ness, Yeheskel
Author_Institution :
Center of Commun. & Signal Process. Res., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
We propose an algorithm to allocate power among subcarriers in an MC-CDMA system. The optimal power allocation coefficients turn out to be the maximum eigenvalue eigenvector of the modified projection matrix orthogonal to the interference signal subspace. We also present a simple on-off control algorithm to decrease feedback information.
Keywords :
cellular radio; channel capacity; code division multiple access; eigenvalues and eigenfunctions; matrix algebra; resource allocation; MC-CDMA; channel capacity; eigenvector; feedback information; interference signal; maximum eigenvalue; modified projection matrix; multicarrier CDMA; multiple mobiles; on-off control algorithm; power allocation algorithm; single cell system; Base stations; Bit error rate; Feeds; Frequency domain analysis; Interchannel interference; Multicarrier code division multiple access; OFDM; Signal processing algorithms; Throughput; Transmitters;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.996992
