An investigatory study into transmission power control for wireless sensor networks in railway applications

Hughes, Jack Bryan; Horler, Greg; Morris, E. P C

doi:10.1049/cp.2016.1189

Cited by 5 publications

(1 citation statement)

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“…In fact, their quality fluctuates over time and space, and connectivity is typically asymmetric [12]. As documented in several previous studies (such as [11] and [13]), theoretical modelling through using simulators and analytical models cannot be directly employed in WSNs since the wireless environment changes dynamically. Even if the changes are relatively slow, deterministic models require physical layer information such as terrain information and coherence time of the channel.…”

Section: Motivationmentioning

confidence: 99%

A survey of link quality properties related to transmission power control protocols in wireless sensor networks

Hughes

Lazaridis

Glover

et al. 2017

2017 23rd International Conference on Automation and Computing (ICAC)

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Transmission Power Control (TPC) protocols are poised for wide spread adoption in wireless sensor networks (WSNs) to address energy constraints. The link quality properties that need to be captured in order to identify the optimum transmission power (TP) have not been clearly defined and previous works have presented conflicting views on the matter. This has led to several current TPC protocols using vastly different link quality properties and reporting unreliable, unstable and inefficient network performance. In this work, observations from several empirical studies on low-power wireless links are applied to identify the most critical properties of link quality for a TPC protocol. Comparing the requirements against currently available link quality estimators, it is shown that link quality estimation in WSNs is still very much an open challenge and one that must be addressed in order to implement an accurate and reliable TPC protocol.

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Section: Motivationmentioning

confidence: 99%