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This paper experimentally verifies how the parallelogram planar array (PPA) can improve the space division multiplexing (SDM) performance of multiuser massive multiple‐input multiple‐output (MIMO) in line‐of‐sight (LOS) channels. PPA can reduce the spatial channel correlation (inter‐user correlation) without any increase in processing load. Channel state information (CSI) of up to 94 antenna elements...
This paper proposes a simplified user scheduling method suitable for our proposed antenna arrangement and an antenna configuration with multi-planar antennas, for Massive MIMO. Massive MIMO has two key problems: the heavy overhead of feeding back the channel state information (CSI) for the very large number of transmission/reception antenna element pairs and the huge computation complexity imposed...
Massive MIMO has two key problems: the low-transmission efficiency caused by channel state information (CSI) feedback overhead and huge computational complexity. Authors have proposed a practical application of Massive MIMO, that is, Massive Antenna System for Wireless Entrance links (MAS-WE), and the performance of the proposed systems have been verified by computer simulations and a propagation...
This paper experimentally verifies the potential of higher order space division multiplexing for multiuser massive MIMO in line-of-sight (LOS) channels. We previously proposed an inter-user interference (IUI) cancellation scheme and simplified user scheduling method on Massive Antenna Systems for Wireless Entrance (MAS-WE). In order to verify the effectiveness of the proposed techniques, channel state...
This paper proposes a practical application of Massive MIMO technology, Massive Antenna Systems for Wireless Entrance (MAS-WE), and its related inter-user interference (IUI) cancellation and scheduling techniques. MAS-WE, on which the entrance base station (EBS) employs a large number of antennas, can effectively provide high capacity wireless entrance links to a large number of Wi-Fi access points...
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