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arXiv · 1710.03787

Indoor Massive MIMO Deployments for Uniformly High Wireless Capacity

Giovanni Geraci·Adrian Garcia-Rodriguez·David Lopez-Perez·Lorenzo Galati Giordano·Paolo Baracca·Holger Claussen
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Abstract

Providing consistently high wireless capacity is becoming increasingly important to support the applications required by future digital enterprises. In this paper, we propose Eigen-direction-aware ZF (EDA-ZF) with partial coordination among base stations (BSs) and distributed interference suppression as a practical approach to achieve this objective. We compare our solution with Zero Forcing (ZF), entailing neither BS coordination or inter-cell interference mitigation, and Network MIMO (NeMIMO), where full BS coordination enables centralized inter-cell interference management. We also evaluate the performance of said schemes for three sub-6 GHz deployments with varying BS densities -- sparse, intermediate, and dense -- all with fixed total number of antennas and radiated power. Extensive simulations show that: (i) indoor massive MIMO implementing the proposed EDA-ZF provides uniformly good rates for all users; (ii) indoor network densification is detrimental unless full coordination is implemented; (iii) deploying NeMIMO pays off under strong outdoor interference, especially for cell-edge users.

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Giovanni Geraci, Adrian Garcia-Rodriguez, David Lopez-Perez, Lorenzo Galati Giordano, Paolo Baracca, Holger Claussen. 2017-10-10. Indoor Massive MIMO Deployments for Uniformly High Wireless Capacity. https://arxiv.org/abs/1710.03787

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