A long-term study of correlations between meteorological conditions and 802.15.4 link performance

Wennerström, Hjalmar; Hermans, Frederik; Rensfelt, Olof; Rohner, Christian; Nordén, Lars-Åke

doi:10.1109/sahcn.2013.6644981

Cited by 44 publications

(46 citation statements)

References 7 publications

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“…By averaging the RSSI samples of different radio channels, we can thus smooth the random and channel-specific variation to better discover the effects of weather conditions. Nevertheless, our observations confirm the findings reported in the literature (e.g., [1], [8]), which states that signal strength has temporal variation. Probably these variations are mostly due to changes in weather conditions.…”

Section: A Temporal Variation Of Signal Strengthsupporting

confidence: 92%

“…However, based on linear regression, only the effect of temperature on RSSI can be regarded as relatively significant. Wennerström et al [8] in their half-year experiment near Uppsala, Sweden, showed how variations in meteorological conditions affect IEEE 802.15.4 link performance when using TelosB nodes with CC2420 radio. Particularly, they studied how variations in PRR (Packet Reception Ratio) and RSSI correlate with temperature, absolute humidity, precipitation, and sunlight.…”

Section: Related Workmentioning

confidence: 99%

“…The effects of weather conditions on link quality (e.g., signal strength) in WSNs have been explored in quite a few studies (e.g., [2], [4], [3], [1], [5], [6], [7], [8], [9]). However, no clear consensus has been achieved so far.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Temperature and Humidity on Radio Signal Strength in Outdoor Wireless Sensor Networks

Luomala¹,

Hakala²

2015

Annals of Computer Science and Information Systems

122

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Abstract-Many wireless sensor networks operating outdoors are exposed to changing weather conditions, which may cause severe degradation in system performance. Therefore, it is essential to explore the factors affecting radio link quality in order to mitigate their impact and to adapt to varying conditions. In this paper, we study the effects of temperature and humidity on radio signal strength in outdoor wireless sensor networks. Experimental measurements were performed using Atmel ZigBit 2.4GHz wireless modules, both in summer and wintertime. We employed all the radio channels specified by IEEE 802.15.4 for 2.4GHz ISM frequency band with two transmit power levels. The results show that changes in weather conditions affect received signal strength. Of the studied weather variables, variation in signal strength can be best explained by the variation in temperature. We also show that frequency diversity can reduce the effects of channel-specific variation, and the difference between the transmit power levels.

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Section: A Temporal Variation Of Signal Strengthsupporting

confidence: 92%

Section: Related Workmentioning

confidence: 99%

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Effects of Temperature and Humidity on Radio Signal Strength in Outdoor Wireless Sensor Networks

Luomala¹,

Hakala²

2015

Annals of Computer Science and Information Systems

122

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“…Several authors report the impact of meteorological conditions on packet reception, including the impact of weather conditions [20,33,34], and humidity [35], as well as the presence of vegetation [36]. One of the most comprehensive studies on wireless nodes deployed outdoors was carried out by Wennerström et al [20], who have highlighted that packet reception ratio and received signal strength correlate the most with temperature, whereas the correlation with other factors such as absolute humidity and precipitation is less pronounced.…”

Section: Environmental Effects On Low-power Radiosmentioning

confidence: 99%

An Experimental Evaluation of the Reliability of LoRa Long-Range Low-Power Wireless Communication

Cattani

Boano

Römer

2017

JSAN

180

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Recent technological innovations allow compact radios to transmit over long distances with minimal energy consumption and could drastically affect the way Internet of Things (IoT) technologies communicate in the near future. By extending the communication range of links, it is indeed possible to reduce the network diameter to a point that each node can communicate with almost every other node in the network directly. This drastically simplifies communication, removing the need of routing, and significantly reduces the overhead of data collection. Long-range low-power wireless technology, however, is still at its infancy, and it is yet unclear (i) whether it is sufficiently reliable to complement existing short-range and cellular technologies and (ii) which radio settings can sustain a high delivery rate while maximizing energy-efficiency. To shed light on this matter, this paper presents an extensive experimental study of the reliability of LoRa , one of the most promising long-range low-power wireless technologies to date. We focus our evaluation on the impact of physical layer settings on the effective data rate and energy efficiency of communications. Our results show that it is often not worth tuning parameters, thereby reducing the data rate in order to maximize the probability of successful reception, especially on links at the edge of their communication range. Furthermore, we study the impact of environmental factors on the performance of LoRa, and show that higher temperatures significantly decrease the received signal strength and may drastically affect packet reception.

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“…During June and July of 2015 we collected link quality data as well as temperature and humidity measurements. The physical setup was the same as described in [8].…”

Section: Methodsmentioning

confidence: 99%

IEEE 802.15.4 Channel Diversity in an Outdoor Environment

Elsts

Wennerström

Rohner

2015

Proceedings of the 6th ACM Workshop on Real World Wireless Sensor Networks

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Low-power wireless link quality is known to be frequencydependent because of multipath fading and other factors. We present a performance study of IEEE 802.15.4 radio links that quantifies and analyzes this frequency-specific performance in a clear-field outdoor environment. Using data from 16 channels on 240 links, we show that effect from channel selection on the average link is up to 4.89 dB, comparable with the effect from 38.7• C change in temperature. These results provide a performance baseline for other environments, as the diversity can be expected to further increase in environments with more obstacles and external interference.

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A long-term study of correlations between meteorological conditions and 802.15.4 link performance

Cited by 44 publications

References 7 publications

Effects of Temperature and Humidity on Radio Signal Strength in Outdoor Wireless Sensor Networks

Effects of Temperature and Humidity on Radio Signal Strength in Outdoor Wireless Sensor Networks

An Experimental Evaluation of the Reliability of LoRa Long-Range Low-Power Wireless Communication

IEEE 802.15.4 Channel Diversity in an Outdoor Environment

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