  In this paper, for the first time, we propose two new solutions to boost the
data rate between small connected objects such as glasses and cams and the 5th
generation (5G) mobile network, based on spatial modulation, single carrier
waveform, compact reconfigurable antennas at the object side and massive
multiple input multiple output (M-MIMO) at the network side. In the first new
wireless communication system, a "transmitting object" uses transmit spatial
modulation with a compact reconfigurable antenna and a constant envelop
amplifier to transmit in high data rate with a low complexity and low power
consumption. The space-time digital processing capability of the M-MIMO 5G base
station is used to detect such signal. In the second new wireless communication
system, a "receiving object" uses receive spatial modulation, a compact
multiport antenna and a low complexity detection algorithm to receive in high
data rate with a low complexity signal processing. The space-time beamforming
capability of the M-MIMO 5G base stations is exploited to deliver a signal that
is pre-equalized enough to be detected by the object. For the first time, we
present experiments showing that M-MIMO allows for the re-introduction of
single carrier modulation waveform. For the first time, we present performance
results obtained with real existing compact antennas and compact reconfigurable
antennas, showing that the two new communication systems outperform
conventional modulation in terms of energy efficiency and complexity.
