Joint transmission using global codeword and codebook design for coordinated multipoint processing (CoMP)

In this paper we propose a joint transmission scheme for LTE-CoMP using a single codeword to transmit from multiple transmission points to a single UE. Transmission with a single codeword makes the signal better aligned with the dominant eigenmode of the channel and achieves higher capacity. A desig...

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Bibliographic Details
Main Authors: Huy-Dung Han, Chenxi Zhu, Yueqiao Xu, Yi Wang, Zhi Ding
Format: Conference Proceeding
Language:English
Subjects:
codebook
CoMP
Correlation
Joint Transmission
Joints
LTE
Matrix decomposition
MIMO
Receiving antennas
Simulation
Transmitting antennas
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Summary:In this paper we propose a joint transmission scheme for LTE-CoMP using a single codeword to transmit from multiple transmission points to a single UE. Transmission with a single codeword makes the signal better aligned with the dominant eigenmode of the channel and achieves higher capacity. A design methodology of the global codebook for joint transmission from two transmission points is developed. A codebook is created using K-mean clustering algorithm from a large number of channel samples generated through simulation. Simulation results show that this approach can outperform traditional local precoding approach where two separate codewords from the existing LTE-A MIMO codebook are used from two transmission points.
ISSN:2166-0077
2166-0077
DOI:10.1109/GLOCOMW.2012.6477735