Enhanced Lattice-Reduction Precoding Using List Quantizer for Multi-Antenna Multi-User Communication

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Based on an analysis of the error patterns in lattice-reduction (LR) precoding in a multiple-antenna broadcast channel, this paper proposes a simple precoding technique that can reduce the quantization error. The proposed scheme establishes a lattice list to provide more candidates for transmission power reduction based on the analysis of the patterns of the error in the LR precoding method [9]. Simulation results show that the proposed scheme matches the BER performance of more complex precedents (such as the vector perturbation using sphere encoding) with significant saving in complexity.
Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Issue Date
2008-01
Language
English
Article Type
Article
Citation

IEICE TRANSACTIONS ON COMMUNICATIONS, v.E91-B, no.1, pp.351 - 354

ISSN
0916-8516
DOI
10.1093/ietcom/e91-b.1.351
URI
http://hdl.handle.net/10203/88625
Appears in Collection
EE-Journal Papers(저널논문)
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