1 research outputs found
Understanding Relative Network Delay inMicro-Energy Harvesting Wireless Networks
Micro-energy harvesting wireless network (MEHWN) enables a perpetual network
deployment that cannot be achieved in traditional battery-operated
counterparts. Despite its sustainability, end-to-end delay in an MEHWN could be
very large, due to the large waiting delay on each hop in the network. In this
work, we consider an MEHWN where every node constantly switches between on and
off states, due to the limited amount of harvested energy. The network delay of
an MEHWN is not well understood because of the energy uncertainty,
asynchronized working schedules, and complex network topology in an MEHWN. To
close this research gap, we define the relative network delay as the ratio
between end-to-end delay and distance. Compared to previous works, we are able
to identify a closed-form expression of the lower bound and a tighter upper
bound of the relative network delay. The theoretical findings are verified in
simulations. Our theoretical analysis deepens the understanding about the
interplay of network delay, energy harvesting rate, and node density in an
MEHWN