From the evaluation of different node densities and different
AoI sizes we conclude that the hybrid scheme achieves a
low dissemination delay and low information staleness compared
to the cloud-based approach. Furthermore, by enabling
adaptive control and configuration of the utilized mobile peerto-peer
dissemination protocols, the overall system overhead
can be reduced significantly compared to the non-adaptive
system. In scenarios with high node density, the transition to
another peer-to-peer dissemination protocol enables the system
to better utilize the available resources of the wireless medium.
The adaptation engine disables the local dissemination protocol
if there is no other node within reach, thereby reducing the
traffic and preserving battery life. However, with the simple
threshold-based adaptation engine, events being dropped due
to protocol mismatches can make up for up to 40% of the
local message drop. This counteracts the benefits obtained by
switching to a dissemination protocol that better utilizes the
wireless medium in denser scenarios.