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2005
Springer

Asymmetry-Aware Link Quality Services in Wireless Sensor Networks

12 years 4 days ago
Asymmetry-Aware Link Quality Services in Wireless Sensor Networks
Recent studies in wireless sensor networks (WSN) have observed that the irregular link quality is a common phenomenon, rather than an anomaly. The irregular link quality, especially link asymmetry, has significant impacts on the design of WSN protocols. In this paper, we propose two asymmetry-aware link quality services: the neighborhood link quality service (NLQS) and the link relay service (LRS). The novelty of the NLQS service is taking the link asymmetry into consideration to provide timeliness link quality and distinguishing the inbound and outbound neighbors with the support of LRS, which builds a relay framework to alleviate the effects of link asymmetry. To demonstrate the proposed link quality services, we design and implement two example applications, the shortest hops routing tree (SHRT) and the best path reliability routing tree (BRRT), on the TinyOS platform. We found that the performance of two example applications is improved substantially. More than 40% of nodes identi...
Junzhao Du, Weisong Shi, Kewei Sha
Added 27 Jun 2010
Updated 27 Jun 2010
Type Conference
Year 2005
Where EUC
Authors Junzhao Du, Weisong Shi, Kewei Sha
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