Approaching eigenmode BLAST channel capacity using V-BLAST with rate and power feedback

Approaching eigenmode BLAST channel capacity using V-BLAST with rate and power feedback
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使用具有速率和功率反馈的 V-BLAST 接近本征模式 BLAST 通道容量

DOI:
10.1109/vtc.2001.956906
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发表时间:
2001
期刊:
IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)
影响因子:
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通讯作者:
Howard C. Huang
Howard C. Huang
中科院分区:
--
文献类型:
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作者:
S. T. Chung;A. Lozano;Howard C. Huang

文献摘要

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在发射机和接收机处的多个天线可以通过在信道的本征模上发射来实现巨大的容量,当信道实现在发射机处已知时。如果发射机不知道信道,则可以在开环模式中实现本征模容量的很大一部分,但是需要多维编码。我们展示了如何开环容量可以实现与传统的一维编码,使用最佳连续解码(OSD)和简单的每天线速率控制。使用功率分配,容量可以进一步增加,尽管只是略微增加。
Multiple antennas at the transmitter and receiver can achieve enormous capacities by transmitting on the channel's eigenmodes when the channel realization is known at the transmitter. If the transmitter has no knowledge of the channel, a significant fraction of the eigenmode capacity can be achieved in an open-loop mode, but multi-dimensional coding is required. We show how the open-loop capacity can be achieved with conventional single-dimensional coding using optimum successive decoding (OSD) and simple per-antenna rate control. Using power allocation, the capacity can be further increased, although only slightly.