Title :
Bit-interleaved Doppler diversity for LTE-Advanced system
Author :
Zhou, Xiaoping ; Zhao, Hui ; Liu, Yang ; Wang, Wenbo ; Wu, Bin
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts Telecommun., Beijing, China
Abstract :
Time-varying channel degrades the performance of LTE-Advanced system due to the Intercarrier Interference (ICI) and imperfect channel estimation. In this paper, we propose a practical strategy by bit-interleaving preprocessing in transmitting part for Doppler diversity in high-speed scenario. Time-varying channel frequency response and effect of coding rate to this algorithm are analyzed. In addition, to evaluate the performance of the proposed strategy, it is implemented into LTE-A system and simulated. The results show that the strategy can achieve significant performance enhancement in high-speed scenario.
Keywords :
Long Term Evolution; channel estimation; diversity reception; frequency response; intercarrier interference; time-varying channels; LTE-Advanced system; bit-interleaved Doppler diversity; channel estimation; frequency response; intercarrier interference; time-varying channels; Channel estimation; Diversity methods; Doppler effect; Encoding; OFDM; Time-varying channels; Wireless communication;
Conference_Titel :
Communications and Networking in China (CHINACOM), 2010 5th International ICST Conference on
Conference_Location :
Beijing
Print_ISBN :
973-963-9799-97-4
