文章基本信息

标题：Channel Estimation and Multiuser Detection in Asynchronous Satellite Communications
本地全文：下载
作者：Helmi Chaouech ; Ridha Bouallegue
期刊名称：International Journal of Wireless & Mobile Networks
印刷版ISSN：0975-4679
电子版ISSN：0975-3834
出版年度：2010
卷号：2
期号：4
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：In this paper, we propose a new method of channel estimation for asynchronous additive white Gaussian noise channels in satellite communications. This method is based on signals correlation and multiuser interference cancellation which adopts a successive structure. Propagation delays and signals amplitudes are jointly estimated in order to be used for data detection at the receiver. As, a multiuser detector, a single stage successive interference cancellation (SIC) architecture is analyzed and integrated to the channel estimation technique and the whole system is evaluated. The satellite access method adopted is the direct sequence code division multiple access (DS CDMA) one. To evaluate the channel estimation and the detection technique, we have simulated a satellite uplink with an asynchronous multiuser access
关键词：Channel estimation; satellite uplink; asynchronous system; propagation delay; SIC.