BROWSE
Detail
Journal Article
Block-Mode Lattice Reduction for Low-Complexity MIMO Detection
- Authors
- Kwonhue Choi, Hannah Kim, Sooyoung Kim, Young-il Kim
- Issue Date
- 2012-02
- Citation
- ETRI Journal, v.34, no.1, pp.110-113
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- We propose a very-low-complexity lattice-reduction (LR) algorithm for multi-input multi-output detection in time-varying channels. The proposed scheme reduces the complexity by performing LR in a block-wise manner. The proposed scheme takes advantage of the temporal correlation of the channel matrices in a block and its impact on the lattice transformation matrices during the LR process. From this, the proposed scheme can skip a number of redundant LR processes for consecutive channel matrices and performs a single LR in a block. As the Doppler frequency decreases, the complexity reduction efficiency becomes more significant. © 2012 ETRI.
- KSP Keywords
- Doppler Frequency, MIMO detection, Multi-input, Multi-output, Multiple input multiple output(MIMO), Reduction Efficiency, Temporal Correlation, Time-varying channels, complexity reduction, lattice reduction(LR), low-complexity MIMO