Title :
A novel DHT-based ultra-wideband system
Author :
Wang, Deqiang ; Liu, Danpu ; Liu, Fang ; Yue, Guangxin
Author_Institution :
Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China
Abstract :
In this paper, a low complexity orthogonal frequency division multiplexing (OFDM) system is proposed for use in high-speed ultra-wideband physical links. Discrete Hartley transform (DHT) and its inverse are employed to perform modulation/demodulation. A data-aided channel estimation algorithm is derived. Both the computational complexity and hardware cost of this system are much lower than that of conventional DFT-based OFDM. The system parameters are designed according to IEEE 802.15.3a channel models and configured with different combinations of modulation, channel coding, and spreading. The system performance is verified via simulations.
Keywords :
OFDM modulation; channel estimation; discrete Hartley transforms; ultra wideband communication; DHT-based ultrawideband system; data-aided channel estimation algorithm; discrete Hartley transform; orthogonal frequency division multiplexing; Channel coding; Channel estimation; Computational complexity; Costs; Demodulation; Discrete transforms; Hardware; Modulation coding; OFDM modulation; Ultra wideband technology;
Conference_Titel :
Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9538-7
DOI :
10.1109/ISCIT.2005.1566944
