DocumentCode
463864
Title
Complexity Adaptive OFDM Systems
Author
Jian Zhang ; Ying Chen ; Jayalath, Dhammika
Author_Institution
Wireless Signal Process. Program, Nat. ICT Australia, Australia
Volume
3
fYear
2007
fDate
15-20 April 2007
Abstract
One disadvantage with current OFDM systems is, the system complexity associated with FFT module, equaliser, etc. is almost fixed and varies little with information bit rate. In this paper, based on an innovative "layered" concept in FFT algorithms, we propose a novel OFDM system whose complexity is adaptive to the desired bit rate and system performance by exploiting transmitter diversity. Different diversity options in the transmitter and receiver are discussed, and verified in simulations.
Keywords
OFDM modulation; adaptive modulation; broadband networks; diversity reception; fast Fourier transforms; matrix algebra; FFT algorithms; complexity adaptive OFDM systems; information bit rate; transmitter diversity; Adaptive systems; Bit rate; Convolution; Diversity reception; Multiaccess communication; OFDM; RAKE receivers; Signal processing algorithms; System performance; Transmitters; FFT; OFDM;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Conference_Location
Honolulu, HI
ISSN
1520-6149
Print_ISBN
1-4244-0727-3
Type
conf
DOI
10.1109/ICASSP.2007.366552
Filename
4217726
Link To Document