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arXiv · 1612.00628

Overloaded Multiuser MISO Transmission with Imperfect CSIT

Enrico Piovano·Hamdi Joudeh·Bruno Clerckx
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Abstract

A required feature for the next generation of wireless communication networks will be the capability to serve simultaneously a large number of devices with heterogeneous CSIT qualities and demands. In this paper, we consider the overloaded MISO BC with two groups of CSIT qualities. We propose a transmission scheme where degraded symbols are superimposed on top of spatially-multiplexed symbols. The developed strategy allows to serve all users in a non-orthogonal manner and the analysis shows an enhanced perfomance compared to existing schemes. Moreover, optimality in a DoF sense is shown.

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Enrico Piovano, Hamdi Joudeh, Bruno Clerckx. 2016-12-02. Overloaded Multiuser MISO Transmission with Imperfect CSIT. https://arxiv.org/abs/1612.00628

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