Title :
On Adaptive Lattice Reduction over Correlated Fading Channels
Author :
Najafi, Hossein ; Jafari, Mohammad Erfan Danesh ; Damen, Mohamed Oussama
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada
fDate :
5/1/2011 12:00:00 AM
Abstract :
In multiple-input multiple-output (MIMO) systems, lattice reduction significantly improves the performance of approximate detection techniques. Taking advantage of the temporal correlation of a Rayleigh fading channel, low complexity lattice reduction is investigated in this work by adaptively updating the reduced lattice basis. We show that a careful use of previous channel realizations yields a significant saving in complexity with a minimal degradation in performance.
Keywords :
MIMO communication; Rayleigh channels; MIMO systems; Rayleigh fading channel; adaptive lattice reduction; approximate detection techniques; correlated fading channels; low complexity lattice reduction; multiple input multiple output systems; Adaptation model; Computational complexity; Fading; Lattices; MIMO; Receiving antennas; Lattice reduction; MIMO channels; Rayleigh fading channel; lattice detection;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2011.022811.090576
