A Communication Monitor for Wireless Sensor Networks Based on Software Defined Radio
2011 (English)Report (Other academic)
Link quality estimation of reliability-crucial wireless sensor networks (WSNs) is often limited by the observability and testability of single-chip radio transceivers. The estimation is often based on collection of packer-level statistics, including packet reception rate, or vendor-specific registers, such as CC2420's Received Signal Strength Indicator (RSSI) and Link Quality Indicator (LQI). The speed or accuracy of such metrics limits the performance of reliability mechanisms built in wireless sensor networks. To improve link quality estimation in WSNs, we designed a powerful wireless communication monitor based on Software Defined Radio (SDR). We studied the relations between three implemented link quality metrics and packet reception rate under different channel conditions. Based on a comparison of the metrics' relative advantages, we proposed using a combination of them for fast and accurate estimation of a sensor network link.
Place, publisher, year, edition, pages
Kista, Sweden: Swedish Institute of Computer Science , 2011, 13.
SICS Technical Report, ISSN 1100-3154 ; 2011:03
Wireless sensor networks, Link quality estimation, Software-defined radio
Computer and Information Science
IdentifiersURN: urn:nbn:se:ri:diva-23785OAI: oai:DiVA.org:ri-23785DiVA: diva2:1042862