A Novel Fix-Effective-LLL Algorithm Using Fast-Givens Rotations for MIMO System

2015 ◽  
Vol 12 (12) ◽  
pp. 4603-4613 ◽  
Author(s):  
Jianping Li
Keyword(s):  
Mimo System ◽  
Lll Algorithm ◽  
Givens Rotations

scholarly journals Gram-Schmidt Combined LLL Lattice-Reduction Aided Detection in MIMO Systems

2011 ◽  
Vol 1 (2) ◽  
Author(s):  
Tadashi Fujino
Keyword(s):  
Mimo Systems ◽  
Mimo System ◽  
Lattice Reduction ◽  
Mimo Channel ◽  
Lll Algorithm ◽  
Detection Scheme ◽  
Channel Matrix ◽  
Mmse Detector ◽  
The Cost ◽  
Ber Performance

This paper proposes an improved lattice-reduction aided (LRA) MMSE detection scheme, based on the Gram-Schmidt (GS) procedure. The proposed scheme reduces the column vectors of the MIMO channel matrix, by using the LLL algorithm followed by the GS procedure in order to transform the channel matrix into a new one which has mutually purely orthogonal column vectors. Compared to the conventional LRA MMSE detector, the proposed detector achieves a very good BER performance, almost equivalent to those using the ML detector in the 4 × 4 MIMO system at the cost of a slightly larger computational complexity.

Channel Capacity Improvement in Near-Field MIMO System Using Metal Wires

2013 ◽  
Vol E96.B (5) ◽  
pp. 1141-1148 ◽  
Author(s):  
Dalin ZHANG ◽  
Toshikazu HORI ◽  
Mitoshi FUJIMOTO
Keyword(s):  
Channel Capacity ◽  
Mimo System ◽  
Near Field ◽  
Capacity Improvement ◽  
Metal Wires
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