Title
A New Path-Constrained Rendezvous Planning Approach for Large-Scale Event-Driven Wireless Sensor Networks.
Abstract
We study the problem of employing a mobile-sink into a large-scale Event-Driven Wireless Sensor Networks (EWSNs) for the purpose of data harvesting from sensor-nodes. Generally, this employment improves the main weakness of WSNs that is about energy-consumption in battery-driven sensor-nodes. The main motivation of our work is to address challenges which are related to a network's topology by adopting a mobile-sink that moves in a predefined trajectory in the environment. Since, in this fashion, it is not possible to gather data from sensor-nodes individually, we adopt the approach of defining some of the sensor-nodes as Rendezvous Points (RPs) in the network. We argue that RP-planning in this case is a tradeoff between minimizing the number of RPs while decreasing the number of hops for a sensor-node that needs data transformation to the related RP which leads to minimizing average energy consumption in the network. We address the problem by formulating the challenges and expectations as a Mixed Integer Linear Programming (MILP). Henceforth, by proving the NP-hardness of the problem, we propose three effective and distributed heuristics for RP-planning, identifying sojourn locations, and constructing routing trees. Finally, experimental results prove the effectiveness of our approach.
Year
DOI
Venue
2018
10.3390/s18051434
SENSORS
Keywords
Field
DocType
mobile sink,energy efficiency,fuzzy decision system,wireless sensor network,rendezvous point planning
Efficient energy use,Electronic engineering,Heuristics,Integer programming,Rendezvous,Path-constrained rendezvous,Engineering,Wireless sensor network,Energy consumption,Trajectory,Distributed computing
Journal
Volume
Issue
Citations 
18
5.0
2
PageRank 
References 
Authors
0.36
36
6
Name
Order
Citations
PageRank
Ahmadreza Vajdi1162.93
Gongxuan Zhang29419.89
Junlong Zhou38910.01
Tongquan Wei425022.62
Yong-li Wang510726.46
Tianshu Wang6132.67