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IEICE TRANSACTIONS on Communications

Estimating Per-Substream Minimum Euclidean Distances for MIMO Systems

Masaaki FUJII

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Summary :

A method for searching minimum Euclidean distances of respective substreams for different modulation orders of M-ary quadrature amplitude modulation signals in multiple-input and multiple-output systems is described. A channel matrix is cyclically-sorted sequentially and QR-decomposed. Using upper triangular matrices obtained by QR decomposition, minimum Euclidean distances are searched over trellis diagrams consisting of symbol-difference lattice points by computationally efficient multiple trellis-search algorithms. The simulation results demonstrate that per-substream minimum Euclidean distances can be detected with a high correct-estimation probability by path-re-searching controls over different modulation orders.

Publication
IEICE TRANSACTIONS on Communications Vol.E90-B No.6 pp.1551-1554
Publication Date
2007/06/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e90-b.6.1551
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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