A linear precoding approach to resolve ambiguity of blind decoding of orthogonal space-time block codes in slowly fading channels

被引：0
|
作者：
Shahbazpanahi, S [1 ]
Gershman, AB [1 ]
Manton, JH [1 ]
机构：
[1] McMaster Univ, Dept ECE, Hamilton, ON L8S 4K1, Canada
来源：
2004 IEEE 5TH WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS | 2004年
关键词：
D O I：
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中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In our earlier work [1], we have developed a new approach to estimate the channel matrix in orthogonal space-time block code (OSTBC) based communication systems. This approach can be used to decode most OSTBCs in a completely blind fashion. However, there are a few OSTBCs for which the aforementioned technique does not work because of the channel non-identifiability. In this paper, we first study the channel estimation ambiguity for the OSTBCs which is caused by such a non-identifiability. We then propose a simple linear precoding technique which resolves this ambiguity.
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页码：228 / 232
页数：5
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