Research Article
Dirty-paper Coding Techniques for Compound MISO Broadcast Channels: A DoF Analysis
@INPROCEEDINGS{10.4108/icst.crowncom.2014.255701, author={Meryem Benammar and Pablo Piantanida and Shlomo Shamai (Shitz)}, title={Dirty-paper Coding Techniques for Compound MISO Broadcast Channels: A DoF Analysis}, proceedings={NEWCOM Special Session on Cognitive Radio/Networks and Related Issues}, publisher={IEEE}, proceedings_a={NEWCOM SPECIAL SESSION}, year={2014}, month={7}, keywords={cognitive compound miso broadcast channel dof interference alignment interference cancelation dirty-paper coding}, doi={10.4108/icst.crowncom.2014.255701} }- Meryem Benammar
Pablo Piantanida
Shlomo Shamai (Shitz)
Year: 2014
Dirty-paper Coding Techniques for Compound MISO Broadcast Channels: A DoF Analysis
NEWCOM SPECIAL SESSION
ICST
DOI: 10.4108/icst.crowncom.2014.255701
Abstract
This work investigates optimal Degrees of Freedom (DoF) achieving schemes for the MISO Compound Broadcast Channels (BC) where a source is equipped with M antennas, and communicates with K single antennas receivers. We develop a modified Dirty Paper Coding that yields the optimal DoF for some Compound MISO BCs in the complex field. This coding scheme offers a “non-linear” alternative to interference alignment at the receivers which yields higher rates in the finite ranges of Power. For asymp- totic power regimes, it allows for fractional DoF of 1/2, while being of simple formulation and straightforward application to secondary transmissions in Compound Cognitive networks.
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