Degrees of Freedom of MIMO <formula formulatype="inline"> <tex Notation="TeX">$X$</tex></formula> Networks: Spatial Scale Invariance and One-Sided Decomposability


We show that an M&#x00D7;N user MIMO X network with A antennas at each node has A(MN/(M+N-1)) degrees of freedom (DoF), thus resolving in this case a discrepancy between the spatial scale invariance conjecture (scaling the number of antennas at each node by a constant factor will scale the total DoF by the same factor) and a decomposability property of… (More)


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@article{Sun2013DegreesOF, title={Degrees of Freedom of MIMO \$X\$ Networks: Spatial Scale Invariance and One-Sided Decomposability}, author={Hua Sun and Tiangao Gou and Syed Ali Jafar}, journal={IEEE Transactions on Information Theory}, year={2013}, volume={59}, pages={8377-8385} }