Searching in the delta lattice: an efficient MIMO detection for iterative receivers

Authors:
I-Wei Lai;Chun-Hao Liao;Martin Witte;David Kammler;Filippo Borlenghi;Konstantinos Nikitopoulos;Venkatesh Ramakrishnan;Dan Zhang;Tzi-Dar Chiueh;Gerd Ascheid;Heinrich Meyr
Affiliations:
Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan;Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan;Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany;Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany;Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany;Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany;Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany;Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany;Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan;Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany;Institute for Integrated Signal Processing Systems, RWTH Aachen University, Aachen, Germany
Venue:
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Year:
2009

Citing 4
Cited 0

Lattice basis reduction: improved practical algorithms and solving subset sum problems

Mathematical Programming: Series A and B
Tight Approximation of the Bit Error Rate for BICM(-ID) Assuming Imperfect CSI

IEEE Transactions on Wireless Communications - Part 2
Closest point search in lattices

IEEE Transactions on Information Theory
Algorithm and implementation of the K-best sphere decoding for MIMO detection

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper introduces a new framework of the multiple-input multiple-output (MIMO) detection in iterative receivers. Unlike the conventional methods processing with symbol lattice, we consider the delta symbol lattice, i.e., the difference between two arbitrary points in the symbol lattice. The inherent flexible, symmetric, and sparse properties of the delta lattice enhance the detection in both complexity and performance aspects. Consequently, we propose a delta-list MIMO (DL-MIMO) detection which separately exploits the channel information and the a priori information so that a soft-input soft-output sphere decoder is dispensable. Simulation results demonstrate this hardware-friendly DL-MIMO detection delivers nearly-optimal performance at affordable cost in a practical scenario.