Title :
Frequency Domain Power Adaptation Scheme for Multi-Carrier Systems
Author :
Bocquet, Wladimir ; Hayashi, Kazunori ; Sakai, Hideaki
Author_Institution :
Tokyo Lab., France Telecom R&D, Tokyo
Abstract :
Multi-carrier modulation (MCM) scheme such as orthogonal frequency division multiplexing (OFDM), is a popular method for high data rate wireless transmission. This paper proposes a novel transmit power allocation for MCM. This technique consists of adapting the power allocation in the frequency domain by considering the channel variations. Optimization process is based on the optimality of the global bit error rate (BER). Simulation results show significant gains for several modulations and setting configurations
Keywords :
OFDM modulation; data communication; error statistics; frequency-domain analysis; radiocommunication; BER; OFDM; bit error rate; frequency domain power adaptation scheme; high data rate wireless transmission; multicarrier modulation; orthogonal frequency division multiplexing; Bandwidth; Bit error rate; Bit rate; Fading; Frequency domain analysis; Modulation coding; OFDM modulation; Quadrature phase shift keying; RF signals; Wireless communication; Lagrangian method; Multi-carrier Modulation; global BER optimization;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
1-4244-0329-4
Electronic_ISBN :
1-4244-0330-8
DOI :
10.1109/PIMRC.2006.254295
