Title :
Performance simulation of fixed-point for MB-OFDM UWB system
Author :
Zhang, Yuqiang ; Zhao, Junhui
Author_Institution :
Fac. of Inf. Technol., Macao Univ. of Sci. & Technol., Macau, China
Abstract :
MB-OFDM UWB communication technology use orthogonal UWB pulse sequence and multiple subchannels to achieve reliable high data rate transmission and spectral efficiency. The structure of the MB-OFDM UWB simulation system is discussed in this paper. The fixed-point simulation platform is also developed by Simulink® which constructed according to MB-OFDM scheme proposed by Multiband OFDM Alliance and the compensation scheme is based on phase compensation. The simulation performance between fixed-point and float-point reference is also studied, concentrated on study the degradation of the receiver and Viterbi decoder due to the finite word length implementation.
Keywords :
OFDM modulation; Viterbi decoding; ultra wideband communication; wireless channels; MB-OFDM UWB system; Multiband OFDM Alliance; Simulink®; UWB pulse sequence; Viterbi decoder; compensation scheme; fixed-point reference; fixed-point simulation; float-point reference; high data rate transmission; multiple subchannels; phase compensation; spectral efficiency; Analytical models; Communications technology; Degradation; Fading; Intersymbol interference; Modulation coding; OFDM; Pulse modulation; Transmitters; Ultra wideband communication;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9335-X
DOI :
10.1109/WCNM.2005.1544039
