Title :
Comparison of Different Subchannelization Modes for OFDMA
Author :
Lengoumbi, Carle ; Godlewski, Philippe ; Martins, Philippe
Author_Institution :
Ecole Nat. Super. des Telecommun., Paris
Abstract :
In this paper, the problem of subchannel composition and allocation for the downlink of an OFDMA system is investigated. The subchannelization mode FUSC adopted in 802.16 is described and compared with dynamic subcarrier allocation algorithms. Performances are evaluated regarding spectral efficiency and complexity. Both single cell and multi-cell scenarios are considered.
Keywords :
channel allocation; frequency division multiple access; FUSC; OFDMA; dynamic subcarrier allocation; multi-cell scenario; single cell scenario; spectral complexity; spectral efficiency; subchannel composition; subchannelization modes; AWGN; Additive white noise; Bandwidth; Downlink; Gaussian noise; Interference; OFDM; Rayleigh channels; Shadow mapping; Signal to noise ratio;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394217
