Fu, H.-L.H.-L.FuChen, H.-C.H.-C.ChenPHONE LIN2020-05-042020-05-04201201403664https://scholars.lib.ntu.edu.tw/handle/123456789/489432https://www.scopus.com/inward/record.uri?eid=2-s2.0-84860487704&doi=10.1016%2fj.comcom.2011.08.004&partnerID=40&md5=529d60b6e4d94386edf5ad1582714330Rapid emergence of Wireless Sensor and Robot Networks (WSRNs) contributes to the deployment of an environmental monitoring system. Three challenging issues are critical to design of an environmental monitoring system, including energy efficiency of sensors, coverage of monitoring area, and validity of sensed data. In this paper, we design and implement an environmental monitoring system on the WSRN, namely distributed air pollution sensing (APS) system, to monitor the air quality in urban environment by taking the three issues into consideration. We apply the sensing region partition and monitoring period concepts for efficient sensed data transmission. We implement the energy-efficient reporting mechanism to prevent redundant transmissions of sensed data to save energy consumption of sensors and prolong network lifetime of the WSRN. © 2011 Elsevier B.V. All rights reserved.Energy efficiency; Environmental monitoring; Sensing region partition; Wireless Sensor and Robot Networks[SDGs]SDG11Energy efficient; Environmental Monitoring; Environmental monitoring system; Monitoring periods; Network lifetime; Robot networks; Sensing region; Sensing systems; Urban environments; Wireless sensor; Air quality; Energy efficiency; Energy utilization; Environmental engineering; Monitoring; Robots; Sensors; Wireless sensor networksjournal article10.1016/j.comcom.2011.08.0042-s2.0-84860487704