Semi-blind spatio-temporal processing with temporal scanning for short burst SDMA systems

被引：7
作者：
Kuzminskiy, AM [1 ]
Hatzinakos, D [1 ]
机构：
[1] Bell Labs, Lucent Technol, Unit 1, Swindon SN5 7YT, Wilts, England
来源：
SIGNAL PROCESSING | 2000年 / 80卷 / 10期
基金：
加拿大自然科学与工程研究理事会;
关键词：
semi-blind filtering; synchronization; short-burst multiuser communication;
D O I：
10.1016/S0165-1684(99)00171-1
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A semi-blind approach for the adjustment of spatio-temporal filter coefficients in short burst spatial division multiple access (SDMA) systems is proposed. The case of imperfect time localization of the desired burst of data is examined. The known temporal structure of a burst of data is used to search and locate the appropriate data processing time frame, which corresponds to the optimal, under some criterion, delay at the output of the spatio-temporal filter. This approach is different than symbol synchronization which is not well defined in the spatio-temporal case due to multipath propagation. Training-based and semi-blind off-line algorithms with temporal scanning are formulated and compared by means of computer simulations. The performance improvement for the proposed semi-blind algorithms and their potential for practical applications are clearly demonstrated. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：2063 / 2073
页数：11
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