Title :
Efficient power allocation for coded OFDM systems
Author :
Moon, Hichan ; Cox, Donald C.
Author_Institution :
Vehicular Technol. Conference - Fall, Los Angeles, CA
fDate :
4/1/2009 12:00:00 AM
Abstract :
In coded OFDM systems, the transmission power of each subchannel is the same. In this letter, a power optimization scheme is presented to minimize FER or BER of a coded OFDM system under constant transmission power constraint. The power optimization is shown to be a convex optimization problem.
Keywords :
OFDM modulation; error statistics; optimisation; BER; bit error rate; coded OFDM systems; convex optimization problem; power allocation; power optimization scheme; transmission power constraint; Bit error rate; Channel coding; Constraint optimization; Discrete Fourier transforms; Interleaved codes; Modulation coding; Moon; OFDM modulation; Power system modeling; Transmitters; Frequency division multiplexing, power control, convex optimization, channel coding, modulation;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2009.04.060304
