Energy-Aware Routing for RPL-Based IoT Networks: Objective Function Design, Layer Coordination and Adaptive Optimisation, a Survey
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更新:2026-11-10 16:38:36 浏览:13次
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摘要
Sensor nodes and other IoT devices run on small batteries, so the way a routing protocol picks its next hops goes a long way toward deciding how long a deployment lasts. RPL, the IPv6 routing protocol standardised for lossy low-power links, makes that choice through a pluggable component called the objective function. In this survey we look at eighteen studies that tackle the problem from three directions: new or revised objective functions, designs in which protocol layers share information, and optimisation based on metaheuristics or learning. We compare them in one table that lists, for each work, the layers involved, the quantity optimised, the evaluation platform and the outcome its authors report; entries we could not verify are marked as such. From these designs we distil a conceptual coordination architecture, discuss what it might cost on constrained nodes and sketch how it could be validated. The architecture has not been implemented or evaluated here. Across the surveyed work, energy gains are usually paid for with delay, signalling cost or lower QoS. Common benchmarks, security awareness in objective functions and the cost of learning on tiny devices remain open problems.
关键词
—RPL, objective function, cross-layer design, energy efficiency, Internet of Things, wireless sensor networks, 6LoWPAN
稿件作者
Vaidegi M
Anna University
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