Title :
Bit, tone and cyclic prefix allocation in OFDM with application to In-Home PLC
Author :
Tonello, Andrea M. ; Alessandro, Salvatore D. ; Lampe, Lutz
Author_Institution :
DIEGM, Univ. di Udine, Udine
Abstract :
We propose to maximize achievable rate in OFDM systems via the adaptation of the cyclic prefix (CP) length jointly with tone and bit loading. We show that significant gains are obtained compared to the case of using a fixed CP with duration equal to the channel. Several metrics for the CP design are described. They tradeoff between performance and complexity. Both single user and multiuser OFDM are considered. Numerical results are reported for typical power line communication indoor channels.
Keywords :
OFDM modulation; carrier transmission on power lines; channel capacity; indoor communication; OFDM; bit allocation; cyclic prefix allocation; in-home PLC; orthogonal frequency division multiplexing; power line communication indoor channels; tone allocation; Attenuation; Channel capacity; Filling; OFDM modulation; Power line communications; Power system modeling; Programmable control; Radio spectrum management; Resource management; Wideband; Home networks; OFDM; PLC; resource allocation;
Conference_Titel :
Wireless Days, 2008. WD '08. 1st IFIP
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-2828-1
Electronic_ISBN :
978-1-4244-2829-8
DOI :
10.1109/WD.2008.4812844
