Talk More Listen Less: Energy-Efficient Neighbor Discovery in Wireless Sensor Networks
Ying Qiu, Shining Li, Xiangsen Xu, Zhigang Li

TL;DR
This paper introduces the TMLL principle to reduce energy consumption in neighbor discovery for wireless sensor networks by optimizing beacon usage, leading to more efficient protocols like Nihao that outperform existing methods.
Contribution
The paper proposes the TMLL design principle, extends neighbor discovery models, and introduces Nihao protocols that improve energy efficiency and channel utilization.
Findings
Nihao significantly reduces energy consumption compared to existing protocols.
The TMLL principle effectively balances duty-cycle, latency, and channel occupancy.
Experimental results confirm Nihao's superior performance in real-world tests.
Abstract
Neighbor discovery is a fundamental service for initialization and managing network dynamics in wireless sensor networks and mobile sensing applications. In this paper, we present a novel design principle named Talk More Listen Less (TMLL) to reduce idle-listening in neighbor discovery protocols by learning the fact that more beacons lead to fewer wakeups. We propose an extended neighbor discovery model for analyzing wakeup schedules in which beacons are not necessarily placed in the wakeup slots. Furthermore, we are the first to consider channel occupancy rate in discovery protocols by introducing a new metric to trade off among duty-cycle, latency and channel occupancy rate. Guided by the TMLL principle, we have designed Nihao, a family of energy-efficient asynchronous neighbor discovery protocols for symmetric and asymmetric cases. We compared Nihao with existing state of the art…
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