Near-optimum detection for distributed space-time block coding under imperfect synchronization
Near-optimum detection for distributed space-time block coding under imperfect synchronization
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DOI：
10.1109/tcomm.2008.070006
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发表时间：
2008-11
影响因子：
8.3
通讯作者：
F. Zheng;A. Burr;S. Ólafsson
中科院分区：
文献类型：
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作者：
F. Zheng;A. Burr;S. Ólafsson
在自组织或网状网络中采用分布式空时分组码（D-STBC）可以获得显著的性能增益。然而，到目前为止，大多数研究D-STBC的假设，合作的中继节点是完美的同步。考虑到在许多实际系统中很难满足这样的假设，本文提出了一种简单的和接近最佳的检测方案的情况下，两个中继节点，证明了能够处理更大的定时偏差比传统的STBC检测器。
Significant performance gain can potentially be achieved by employing distributed space-time block coding (D-STBC) in ad hoc or mesh networks. So far, however, most research on D-STBC has assumed that cooperative relay nodes are perfectly synchronized. Considering the difficulty in meeting such an assumption in many practical systems, this paper proposes a simple and near-optimum detection scheme for the case of two relay nodes, which proves to be able to handle far greater timing misalignment than the conventional STBC detector.