@article{Campello:2018:10.1109/TIT.2018.2864745,
author = {Campello, A and Ling, C and Belfiore, J-C},
doi = {10.1109/TIT.2018.2864745},
journal = {IEEE Transactions on Information Theory},
pages = {7847--7865},
title = {Universal lattice codes for MIMO channels},
url = {http://dx.doi.org/10.1109/TIT.2018.2864745},
volume = {64},
year = {2018}
}

Download

TY  - JOUR
AB  - We propose a coding scheme that achieves the capacity of the compound MIMO channel with algebraic lattices. Our lattice construction exploits the multiplicative structure of number fields and their group of units to absorb ill-conditioned channel realizations. To shape the constellation, a discrete Gaussian distribution over the lattice points is applied. These techniques, along with algebraic properties of the proposed lattices, are then used to construct a sub-optimal de-coupled coding scheme that achieves a constant gap to compound capacity by decoding in a lattice that does not dependent on the channel realization. The gap is characterized in terms of algebraic invariants of the code and is shown to be significantly smaller than previous schemes in the literature. We also exhibit alternative algebraic constructions that achieve the capacity of ergodic (SISO) fading channels.
AU  - Campello,A
AU  - Ling,C
AU  - Belfiore,J-C
DO  - 10.1109/TIT.2018.2864745
EP  - 7865
PY  - 2018///
SN  - 0018-9448
SP  - 7847
TI  - Universal lattice codes for MIMO channels
T2  - IEEE Transactions on Information Theory
UR  - http://dx.doi.org/10.1109/TIT.2018.2864745
UR  - https://ieeexplore.ieee.org/document/8437258
UR  - http://hdl.handle.net/10044/1/64718
VL  - 64
ER  - 

Download