Title :
A novel LOFDM signal and its optimization over doubly-dispersion channels
Author :
Yuan, Zhi-gang ; Shen, Yue-hong
Author_Institution :
Commun. Eng. Inst, PLA Univ., Nanjing
Abstract :
As for the ISI/ICI resistances over the mobile wireless channels, the lattice-based OFDM approach (LOFDM) outperforms the traditional OFDM distinctly. However, due to its complicated signal description, few theoretic analyzes on its performances are available yet. In this paper, a novel lattice description is presented, which lays a more general framework than the previous matrix-based description but with less complexity. Then for the band-limited applications, the optimal LOFDM structure is, first to our knowledge, to be deduced. Our theoretic analysis is confirmed by numerical results.
Keywords :
OFDM modulation; dispersive channels; mobile communication; optimisation; LOFDM signal; band-limited applications; doubly-dispersion channels; lattice-based OFDM; mobile wireless channels; optimization; Analytical models; Interchannel interference; Intersymbol interference; Lattices; Mobile communication; OFDM; Performance analysis; Programmable logic arrays; Signal analysis; Time-varying channels;
Conference_Titel :
Industrial Electronics and Applications, 2008. ICIEA 2008. 3rd IEEE Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-1717-9
Electronic_ISBN :
978-1-4244-1718-6
DOI :
10.1109/ICIEA.2008.4582636