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Making Sensornet MAC Protocols Robust Against Interference
RISE, Swedish ICT, SICS, Computer Systems Laboratory.ORCID iD: 0000-0002-2586-8573
RISE, Swedish ICT, SICS, Computer Systems Laboratory.ORCID iD: 0000-0003-3139-2564
RISE, Swedish ICT, SICS, Computer Systems Laboratory.ORCID iD: 0000-0003-4560-9541
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2010 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Radio interference may lead to packet losses, thus negatively affecting the performance of sensornet applications. In this paper, we experimentally assess the impact of external interference on state-of-the-art sensornet MAC protocols. Our experiments illustrate that specific features of existing protocols, e.g., hand-shaking schemes preceding the actual data transmission, play a critical role in this setting. We leverage these results by identifying mechanisms to improve the robustness of existing MAC protocols under interference. These mechanisms include the use of multiple hand-shaking attempts coupled with packet trains and suitable congestion backoff schemes to better tolerate interference. We embed these mechanisms within an existing X-MAC implementation and show that they considerably improve the packet delivery rate while keeping the power consumption at a moderate level.

Place, publisher, year, edition, pages
2010, 10.
Keyword [en]
wireless sensor networks, MAC protocols, interference, robustness
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:ri:diva-23616OAI: oai:DiVA.org:ri-23616DiVA: diva2:1042692
Conference
7th European Conference on Wireless Sensor Networks, 17-19 Feb 2010, Coimbra, Portuga
Projects
CONETReSensePromos
Available from: 2016-10-31 Created: 2016-10-31 Last updated: 2017-07-27Bibliographically approved

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