Coded modulation with mismatched power control over block-fading channels
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
Transmit precoding for MIMO systems with partial CSI and discrete-constellation inputs
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
A simple near-capacity bandwidth-efficient coded modulation scheme in rayleigh fading
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Coded modulation with mismatched CSIT over MIMO block-fading channels
IEEE Transactions on Information Theory
| Hi-index | 754.90 |
We study coded modulation over multidimensional signal sets in Nakagami-m block-fading channels. We consider the optimal diversity reliability exponent of the error probability when the multidimensional constellation is obtained as the rotation of complex-plane signal constellations. We show that multidimensional rotations of full dimension achieve the optimal diversity reliability exponent, also achieved by Gaussian constellations. Rotations of full dimension induce a large decoding complexity, and in some cases it might be beneficial to use multiple rotations of smaller dimension. We also study the diversity reliability exponent in this case, which yields the optimal rate-diversity-complexity tradeoff in block-fading channels with discrete inputs.