The document presents research on improving energy efficiency in mobility-enabled wireless sensor networks (WSNs) by proposing a rendezvous-based data collection method. This approach utilizes specific sensor nodes as rendezvous points to buffer data and effectively reduces latency in data transmission. The proposed algorithms ensure performance optimization for mobile base stations, supported by theoretical and simulation validations.

1. Impulse Technologies
Beacons U to World of technology
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Efficient Rendezvous Algorithms for Mobility-Enabled Wireless
Sensor Networks
Abstract—
Recent research shows that significant energy saving can be achieved in
mobility-enabled wireless sensor networks (WSNs) that visit sensor nodes and
collect data from them via short-range communications. However, a major
performance bottleneck of such WSNs is the significantly increased latency in data
collection due to the low movement speed of mobile base stations. To address this
issue, we propose a rendezvous-based data collection approach in which a subset
of nodes serve as rendezvous points that buffer and aggregate data originated from
sources and transfer to the base station when it arrives. This approach combines the
advantages of controlled mobility and in-network data caching and can achieve a
desirable balance between network energy saving and data collection delay. We
propose efficient rendezvous design algorithms with provable performance bounds
for mobile base stations with variable and fixed tracks, respectively. The
effectiveness of our approach is validated through both theoretical analysis and
extensive simulations.
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