Performance analysis of 6LoWPAN protocol for a food monitoring system
The internet of things is a disruptive technology that has been applied as a solution to problems in many fields of monitoring environmental variables. It is supported by technologies such as wireless sensor networks, which offer many protocols and hardware platforms in the market today. Protocols s...
- Autores:
-
Piñeres Espitia, Gabriel Dario
aziz, shariq
Estévez‑Ortiz, Francisco
Cama-Pinto, Alejandro
Maleh, yassine
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2022
- Institución:
- Corporación Universidad de la Costa
- Repositorio:
- REDICUC - Repositorio CUC
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.cuc.edu.co:11323/9130
- Acceso en línea:
- https://hdl.handle.net/11323/9130
https://doi.org/10.1186/s13638-022-02098-3
https://repositorio.cuc.edu.co/
- Palabra clave:
- 6LoWPAN
Wireless sensor networks (WSN)
Routing protocol
Low-power listening (LPL)
Network monitoring and measurements
Flash food
- Rights
- openAccess
- License
- © 2022 BioMed Central Ltd unless otherwise stated. Part of Springer Nature.
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dc.title.eng.fl_str_mv |
Performance analysis of 6LoWPAN protocol for a food monitoring system |
title |
Performance analysis of 6LoWPAN protocol for a food monitoring system |
spellingShingle |
Performance analysis of 6LoWPAN protocol for a food monitoring system 6LoWPAN Wireless sensor networks (WSN) Routing protocol Low-power listening (LPL) Network monitoring and measurements Flash food |
title_short |
Performance analysis of 6LoWPAN protocol for a food monitoring system |
title_full |
Performance analysis of 6LoWPAN protocol for a food monitoring system |
title_fullStr |
Performance analysis of 6LoWPAN protocol for a food monitoring system |
title_full_unstemmed |
Performance analysis of 6LoWPAN protocol for a food monitoring system |
title_sort |
Performance analysis of 6LoWPAN protocol for a food monitoring system |
dc.creator.fl_str_mv |
Piñeres Espitia, Gabriel Dario aziz, shariq Estévez‑Ortiz, Francisco Cama-Pinto, Alejandro Maleh, yassine |
dc.contributor.author.spa.fl_str_mv |
Piñeres Espitia, Gabriel Dario aziz, shariq Estévez‑Ortiz, Francisco Cama-Pinto, Alejandro Maleh, yassine |
dc.subject.proposal.eng.fl_str_mv |
6LoWPAN Wireless sensor networks (WSN) Routing protocol Low-power listening (LPL) Network monitoring and measurements Flash food |
topic |
6LoWPAN Wireless sensor networks (WSN) Routing protocol Low-power listening (LPL) Network monitoring and measurements Flash food |
description |
The internet of things is a disruptive technology that has been applied as a solution to problems in many fields of monitoring environmental variables. It is supported by technologies such as wireless sensor networks, which offer many protocols and hardware platforms in the market today. Protocols such as 6LoWPAN are novel, so this work focuses on determining whether its implementation on TelosB mote is feasible; these would be placed on an experimental deployment for a particular scenario of flash floods in a sector known as “La Brigada”, in the city of Barranquilla. This proposal has not been evaluated in Colombia for this type of application, and no similar work has been done for this type of scenario. For the evaluation of 6LoWPAN, a deployment with two end nodes and a sink node has been designed, due to the monitoring section under study; 5-min tests are proposed where through round trip time traffic PINGv6 packets are generated back and forth (Echo) between a sink node and two end nodes. The results are based on the evaluation of metrics such as delay and ping packet request/response rate. The performance of these metrics is subject to test scenarios that vary according to distance, packet size, and channel scan time. Two routing options, static or dynamic, are also proposed for this application case. The tests performed yielded results in terms of better performance in the test scenarios for packets with an average size of 120 B and channel monitoring times of 1024 ms. Likewise, the use of the TelosB platform was validated as a viable and innovative option for a monitoring scenario to flash floods in short stretches of the city of Barranquilla—Colombia. This study is important because it can provide information on the use of the TelosB platform as a valid solution for similar application scenarios; furthermore, the tests performed can be replicated in similar studies to evaluate congestion, power consumption, routing, topologies, and other metrics. This study is providing a road map for the research community to follow the simulation scenario to apply the test to their own studies. This work also provides the guidelines for similar researchers to monitor the flood in their own regions and then compare their results with this study. |
publishDate |
2022 |
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2022-04-18T23:08:22Z |
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2022-04-18T23:08:22Z |
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2022 |
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Artículo de revista |
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dc.identifier.citation.spa.fl_str_mv |
Gabriel, PE., Butt, S.A., Francisco, EO. et al. Performance analysis of 6LoWPAN protocol for a flood monitoring system. J Wireless Com Network 2022, 16 (2022). https://doi.org/10.1186/s13638-022-02098-3 |
dc.identifier.issn.spa.fl_str_mv |
1687-1472 |
dc.identifier.uri.spa.fl_str_mv |
https://hdl.handle.net/11323/9130 |
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https://doi.org/10.1186/s13638-022-02098-3 |
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10.1186/s13638-022-02098-3 |
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1687-1499 |
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Corporación Universidad de la Costa |
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REDICUC - Repositorio CUC |
dc.identifier.repourl.spa.fl_str_mv |
https://repositorio.cuc.edu.co/ |
identifier_str_mv |
Gabriel, PE., Butt, S.A., Francisco, EO. et al. Performance analysis of 6LoWPAN protocol for a flood monitoring system. J Wireless Com Network 2022, 16 (2022). https://doi.org/10.1186/s13638-022-02098-3 1687-1472 10.1186/s13638-022-02098-3 1687-1499 Corporación Universidad de la Costa REDICUC - Repositorio CUC |
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https://hdl.handle.net/11323/9130 https://doi.org/10.1186/s13638-022-02098-3 https://repositorio.cuc.edu.co/ |
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eng |
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eng |
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Eurasip Journal on Wireless Communications and Networking |
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Tariq, C. Collazos-Morales, G. Piñeres-Espitia, IoT monitoring of water consumption for irrigation systems using SEMMA methodology, in International Conference on Intelligent Human Computer Interaction (Springer, Cham, 2019), p. 222–234 21. N. Yaacob, N. Tajudin, A.M. Azize, Rainfall-landslide early warning system (RLEWS) using TRMM precipitation estimates. Indonesian J. Electric. Eng. Comput. Sci. 13(3), 1259–1266 (2019). https://doi.org/10.11591/ijeecs.v13.i3. pp1259-1266 22. S. Segoni, L. Piciullo, S.L. Gariano, A review of the recent literature on rainfall thresholds for landslide occurrence. Landslides 15(8), 1483–1501 (2018) 23. V.H. Lai, V.C. Tsai, M.P. Lamb, T.P. Ulizio, A.R. Beer, The seismic signature of debris fows: fow mechanics and early warning at Montecito, California. Geophys. Res. Lett. 45(11), 5528–5535 (2018) 24. M. Azam, H. San Kim, S.J. Maeng, Development of food alert application in Mushim stream watershed Korea. Int. J. Disast. Risk Reduct. 21, 11–26 (2017) 25. C. Cecioni, G. Bellotti, A. Romano, A. Abdolali, P. Sammarco, L. Franco, Tsunami early warning system based on realtime measurements of hydro-acoustic waves. Proc. Eng. 70, 311–320 (2014) 26. B.S.B. Dewantara, F. Ardilla, Early warning and IoT-based reporting system for mobile trash bin robot application, in 2018 International Electronics Symposium on Knowledge Creation and Intelligent Computing (IES-KCIC) (IEEE, 2018), p. 341–348 27. N.-A. Maspo, A.N. Harun, M. Goto, M.N.M. Nawi, N.A. Haron, Development of internet of thing (IoT) technology for food prediction and early warning system (EWS). Int. J. Innov. Technol. Explor. Eng. 8(4S), 219–228 (2019) 28. R.W. Randhawa, R. Mahmood, T. Ahmad, AquaEye: a low cost food early warning system for developing countries, in 2018 International Conference on Frontiers of Information Technology (FIT) (IEEE, 2018), p. 345–349 29. E. Intrieri, G. Gigli, T. Gracchi, M. Nocentini, L. Lombardi, F. Mugnai, A. Fornaciai, Application of an ultra-wide band sensor-free wireless network for ground monitoring. Eng. Geol. 238, 1–14 (2018) 30. M. Acosta-Coll, F. Ballester-Merelo, M. Martinez-Peiró, D. la Hoz-Franco, Real-time early warning system design for pluvial fash foods—a review. Sensors 18(7), 2255 (2018) 31. J. Arrieta, Y. Fernández, Estimación De Los Caudales Del Arroyo La Segunda Brigada II Para Diferentes Períodos De Retorno Aplicando La Herramienta Computacional Epa-Swmm (2015). http://hdl.handle.net/11323/490. Accessed 29 Nov 2017 32. A. Raad, D. Villa, Diseño y desarrollo de una aplicación móvil para dispositivos android para un sistema de alerta temprana de los arroyos de la ciudad de Barranquilla (2014). http://hdl.handle.net/11323/238. Accessed 29 Nov 2017 33. A. Chatap, S. Sirsikar, Review on various routing protocols for heterogeneous wireless sensor network, in 2017 International Conference on I-SMAC (IoT in Social, Mobile, Analytics and Cloud) (I-SMAC) (2017), p. 440–444 34. 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Technol. 6, 754–762 (2012). https://doi.org/10.1016/j.protcy.2012.10.091 53. J. Santos, J.J. Rodrigues, B.M. Silva, J. Casal, K. Saleem, V. Denisov, An IoT-based mobile gateway for intelligent per‑ sonal assistants on mobile health environments. J. Netw. Comput. Appl. 71, 194–204 (2016) 54. J. Shreyas, H. Singh, S. Tiwari, N.N. Srinidhi, S.D. Kumar, CAFOR: congestion avoidance using fuzzy logic to fnd an optimal routing path in 6LoWPAN networks. J. Reliab. Intell. Environ. 7, 1–16 (2021) 55. T.W. Ching, A.H.M. Aman, W.M.H. Azamuddin, H. Sallehuddin, Z.S. Attarbashi, Performance Analysis of Internet of Things Routing Protocol for Low Power and Lossy Networks (RPL): Energy, Overhead and Packet Delivery, in 2021 3rd International Cyber Resilience Conference (CRC) (IEEE, 2021). p. 1–6 56. N. Hoque, M.H. Bhuyan, R.C. Baishya, D.K. Bhattacharyya, J.K. Kalita, Network attacks: taxonomy, tools and systems. J. Netw. Comput. Appl. 40, 307–324 (2014) 57. F. Montoya, J. Gomez, F. Manzano-Agugliaro, A. Cama, A. García-Cruz, J. De La Cruz, 6LoWSoft: a software suite for the design of outdoor environmental measurements. J. Food Agric. Environ. 11(3–4), 2584–2586 (2013) 58. A. Cama-Pinto, G. Piñeres-Espitia, J. Caicedo-Ortiz, E. Ramírez-Cerpa, L. Betancur-Agudelo, F. Gómez-Mula, Received strength signal intensity performance analysis in wireless sensor network using Arduino platform and XBee wireless modules. Int. J. Distrib. Sens. Netw. 13(7), 1–10 (2017). https://doi.org/10.1177/1550147717722691 59. T. Dinh, Y. Kim, T. Gu, A.V. Vasilakos, An adaptive low-power listening protocol for wireless sensor networks in noisy environments. IEEE Syst. J. 12(3), 2162–2173 (2017) 60. B.L.R. Stojkoska, K.V. Trivodaliev, A review of internet of things for smart home: challenges and solutions. J. Clean. Prod. 140, 1454–1464 (2017) 61. N. Baccour, A. Koubâa, H. Youssef, M. Alves, Reliable link quality estimation in low-power wireless networks and its impact on tree-routing. 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Piñeres Espitia, Gabriel Darioaziz, shariqEstévez‑Ortiz, FranciscoCama-Pinto, AlejandroMaleh, yassine2022-04-18T23:08:22Z2022-04-18T23:08:22Z2022Gabriel, PE., Butt, S.A., Francisco, EO. et al. Performance analysis of 6LoWPAN protocol for a flood monitoring system. J Wireless Com Network 2022, 16 (2022). https://doi.org/10.1186/s13638-022-02098-31687-1472https://hdl.handle.net/11323/9130https://doi.org/10.1186/s13638-022-02098-310.1186/s13638-022-02098-31687-1499Corporación Universidad de la CostaREDICUC - Repositorio CUChttps://repositorio.cuc.edu.co/The internet of things is a disruptive technology that has been applied as a solution to problems in many fields of monitoring environmental variables. It is supported by technologies such as wireless sensor networks, which offer many protocols and hardware platforms in the market today. Protocols such as 6LoWPAN are novel, so this work focuses on determining whether its implementation on TelosB mote is feasible; these would be placed on an experimental deployment for a particular scenario of flash floods in a sector known as “La Brigada”, in the city of Barranquilla. This proposal has not been evaluated in Colombia for this type of application, and no similar work has been done for this type of scenario. For the evaluation of 6LoWPAN, a deployment with two end nodes and a sink node has been designed, due to the monitoring section under study; 5-min tests are proposed where through round trip time traffic PINGv6 packets are generated back and forth (Echo) between a sink node and two end nodes. The results are based on the evaluation of metrics such as delay and ping packet request/response rate. The performance of these metrics is subject to test scenarios that vary according to distance, packet size, and channel scan time. Two routing options, static or dynamic, are also proposed for this application case. The tests performed yielded results in terms of better performance in the test scenarios for packets with an average size of 120 B and channel monitoring times of 1024 ms. Likewise, the use of the TelosB platform was validated as a viable and innovative option for a monitoring scenario to flash floods in short stretches of the city of Barranquilla—Colombia. This study is important because it can provide information on the use of the TelosB platform as a valid solution for similar application scenarios; furthermore, the tests performed can be replicated in similar studies to evaluate congestion, power consumption, routing, topologies, and other metrics. This study is providing a road map for the research community to follow the simulation scenario to apply the test to their own studies. This work also provides the guidelines for similar researchers to monitor the flood in their own regions and then compare their results with this study.18 páginasapplication/pdfengSpringer OpenUnited Kingdom© 2022 BioMed Central Ltd unless otherwise stated. Part of Springer Nature.Atribución 4.0 Internacional (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Performance analysis of 6LoWPAN protocol for a food monitoring systemArtículo de revistahttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1Textinfo:eu-repo/semantics/articlehttp://purl.org/redcol/resource_type/ARTinfo:eu-repo/semantics/acceptedVersionhttps://jwcn-eurasipjournals.springeropen.com/articles/10.1186/s13638-022-02098-3Eurasip Journal on Wireless Communications and Networking1. V.H. Puar, C.M. Bhatt, D.M. Hoang, D.N. 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Ad Hoc Netw. 27, 1–25 (2015). https://doi.org/10.1016/j.adhoc.2014.11.011181166LoWPANWireless sensor networks (WSN)Routing protocolLow-power listening (LPL)Network monitoring and measurementsFlash foodPublicationORIGINALPerformance analysis of 6LoWPAN protocol for a flood monitoring system.pdfPerformance analysis of 6LoWPAN protocol for a flood monitoring system.pdfapplication/pdf2053349https://repositorio.cuc.edu.co/bitstreams/6b9d1edd-7b54-40c2-bda7-01d153072ee4/download0eb131a55654e2cc63525ccf1f07ff93MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-83196https://repositorio.cuc.edu.co/bitstreams/808bea5e-52a3-4282-b62c-0bf6a43fdb6b/downloade30e9215131d99561d40d6b0abbe9badMD52TEXTPerformance analysis of 6LoWPAN protocol for a flood monitoring system.pdf.txtPerformance analysis of 6LoWPAN protocol for a flood monitoring system.pdf.txttext/plain53150https://repositorio.cuc.edu.co/bitstreams/bb074de2-0630-498a-91b4-285425129895/downloada87a33cbb3501bd60c108dedddd16b52MD53THUMBNAILPerformance analysis of 6LoWPAN protocol for a flood monitoring system.pdf.jpgPerformance analysis of 6LoWPAN protocol for a flood monitoring system.pdf.jpgimage/jpeg12626https://repositorio.cuc.edu.co/bitstreams/7a92d064-c8b6-4716-8d5a-08aae9fc73c5/downloadc1213e964af3ed3d21240cc1e64683fcMD5411323/9130oai:repositorio.cuc.edu.co:11323/91302024-09-17 14:16:05.706https://creativecommons.org/licenses/by/4.0/© 2022 BioMed Central Ltd unless otherwise stated. Part of Springer Nature.open.accesshttps://repositorio.cuc.edu.coRepositorio de la Universidad de la Costa CUCrepdigital@cuc.edu.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 |