Sphere Lower Bound for Rotated Lattice Constellations in Fading Channels

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We study the error probability performance of rotated lattice constellations in frequency-flat Nakagami-$m$ block-fading channels. In particular, we use the sphere lower bound on the underlying infinite lattice as a performance benchmark. We show that the sphere lower bound has full diversity. We observe that optimally rotated lattices with largest known minimum product distance perform very close to the lower bound, while the ensemble of random rotations is shown to lack diversity and perform far from it.
accepted for publication at the IEEE Transactions on Wireless Communications

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Information Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/134063

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0707.0649
 http://arxiv.org/abs/0707.0649

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arXiv