NEWCOM Special Session on Cognitive Radio/Networks and Related Issues

Research Article

Dirty-paper Coding Techniques for Compound MISO Broadcast Channels: A DoF Analysis

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  • @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
Meryem Benammar1,*, Pablo Piantanida1, Shlomo Shamai (Shitz)2
  • 1: SUPELEC
  • 2: Technion
*Contact email: meryem.benammar@supelec.fr

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.