NDLI: Lattice Reduction Aided Precoding Mechanism for MIMO Systems

Content Provider	IEEE Xplore Digital Library
Author	Xiaoping Zhou Xingliang Yin Wenbo Wang
Copyright Year	2011
Abstract	A lattice reduction (LR) aided precoding mechanism is proposed for the closed-loop multiple input multiple output (MIMO) systems. According to this mechanism, a LR based codebook construction algorithm is proposed. In this codebook construction algorithm, the channel matrix is quantified basing the lattice reduction operation. On one hand, this precoding mechanism achieves full receive diversity gain, which will greatly improve the reliability of transmission; on the other hand, this precoding mechanism makes different sub-channels of the equivalent channel matrix have similar performance, which enables once modulation coding scheme choice for different data streams. Moreover, the proposed scheme is suitable for both uncorrelated and correlated channel. The simulation results show that the LR aided precoding mechanism proposed has better throughput performance than the existing precoding scheme with the same size of codebook, and when signal to noise ratio equals 16 dB, throughput gain is up to 28%.
Starting Page	1
Ending Page	5
File Size	593220
Page Count	5
File Format	PDF
ISBN	9781424462506
ISSN	21619654
e-ISBN	9781424462520
DOI	10.1109/wicom.2011.6040079
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lattices Detectors Receivers Diversity methods Throughput MIMO Matrix decomposition
Content Type	Text
Resource Type	Article

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