Title :
Multi-User Joint Doppler Spread Estimation in Generalized Distributed Antenna System
Author :
Xu, Jin ; Zhang, Jing ; Han, Juan ; Tao, Xiaofeng ; Li, Lihua ; Zhang, Ping
Author_Institution :
Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
Generalized distributed antenna is one of the most promising architectures likely to be used in next generation mobile communication systems. In this paper, based on the architecture, multi-user co-channel interference in Doppler spread estimation is analyzed and several useful conclusions are obtained. Moreover, in order to combat this interference, a novel ACF-based multi-user joint Doppler spread estimation (M- JDSE) algorithm is proposed, taking advantage of centralized signal processing characteristic in generalized distributed antenna systems. Both theoretical analysis and simulation results demonstrate the significant performance improvement of proposed M-JDSE algorithm in multi-user environments.
Keywords :
antennas; mobile radio; radiofrequency interference; signal processing; spread spectrum communication; M-JDSE algorithm; generalized distributed antenna system; mobile communication systems; multiuser cochannel interference; multiuser joint doppler spread estimation; signal processing characteristic; Algorithm design and analysis; Analytical models; Frequency; Interchannel interference; MIMO; Mobile antennas; Mobile communication; Rayleigh channels; Signal processing algorithms; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC-2007 Fall. 2007 IEEE 66th
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-0263-2
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2007.163
