An implementation of discrete multi-tone over slowly time-varying multiple-input/multiple-output channels
- 28 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 5, 2806-2811
- https://doi.org/10.1109/glocom.1998.776499
Abstract
We have investigated a method for data transmission over slowly time-varying MIMO channels. A low complexity method is introduced that effectively diagonalizes the MIMO channel. This enables the use of discrete multi-tone (DMT) modulation over the MIMO channel to achieve information transmission rates close to the Shannon capacity. DMT requires knowledge of the channel state information at the transmitter which is not always possible in practice. In this case the channel can be only made block diagonal and signal detection requires the solution to a least-squares problem with integer variables. This is a very challenging problem that is theoretically difficult (NP-hard). In this paper, a practically efficient method is proposed to solve this least squares problem.Keywords
This publication has 14 references indexed in Scilit:
- Spatio-temporal coding for wireless communicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Integer parameter estimation in linear models with applications to GPSPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Space-time processing for fast fading channels with co-channel interferencesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Layered space-time architecture for wireless communication in a fading environment when using multi-element antennasBell Labs Technical Journal, 2002
- On joint transmitter and receiver optimization for multiple-input-multiple-output (MIMO) transmission systemsIEEE Transactions on Communications, 1994
- Gaussian multiaccess channels with ISI: capacity region and multiuser water-fillingIEEE Transactions on Information Theory, 1993
- Geometric Algorithms and Combinatorial OptimizationPublished by Springer Nature ,1988
- On Lovász’ lattice reduction and the nearest lattice point problemCombinatorica, 1986
- Improved algorithms for integer programming and related lattice problemsPublished by Association for Computing Machinery (ACM) ,1983
- Factoring polynomials with rational coefficientsMathematische Annalen, 1982