Improving Multi-Storey Building Sensor Network With an External Hub

Date Added: Jun 2009
Format: PDF

Monitoring and automatic control of building environment is a crucial application of Wireless Sensor Network (WSN) in which maximizing network lifetime is a key challenge. Previous research into the performance of a network in a building environment has been concerned with radio propagation within a single floor. The authors investigate the link quality distribution to obtain full coverage of signal strength in a four-storey building environment, experimentally. The results indicate that the transitional region is of particular concern in wireless sensor network since it accommodates high variance unreliable links.