TY - GEN
T1 - Robust top-k query evaluation in wireless sensor networks
AU - Chen, Baichen
AU - Min, Geyong
PY - 2010
Y1 - 2010
N2 - In many applications of sensor networks including environmental monitoring and security surveillance, a large volume of sensed data generated by sensors is needed to be either collected at the base station or aggregated within the network to respond to user queries. However, due to the high failure rate of wireless communication, robust query processing is very important for some critical queries in sensor networks by dealing with the messages loss in sensor networks. In this paper, we propose a novel localized and adaptive algorithm for robust top-k query evaluation in wireless sensor networks, which strives the right tradeoff between the energy consumption and the accuracy of obtained results. We finally conduct extensive experiments by simulations to evaluate the performance of the proposed algorithm on real datasets. The experimental results show that the proposed algorithm is energy-efficient when meeting the specified result accuracy requirement.
AB - In many applications of sensor networks including environmental monitoring and security surveillance, a large volume of sensed data generated by sensors is needed to be either collected at the base station or aggregated within the network to respond to user queries. However, due to the high failure rate of wireless communication, robust query processing is very important for some critical queries in sensor networks by dealing with the messages loss in sensor networks. In this paper, we propose a novel localized and adaptive algorithm for robust top-k query evaluation in wireless sensor networks, which strives the right tradeoff between the energy consumption and the accuracy of obtained results. We finally conduct extensive experiments by simulations to evaluate the performance of the proposed algorithm on real datasets. The experimental results show that the proposed algorithm is energy-efficient when meeting the specified result accuracy requirement.
KW - Energy conservation
KW - Robust top-k query evaluation
KW - Wireless sensor networks
UR - http://www.scopus.com/inward/record.url?scp=78249242131&partnerID=8YFLogxK
U2 - 10.1109/CIT.2010.131
DO - 10.1109/CIT.2010.131
M3 - Conference contribution
SN - 9780769541082
T3 - Proceedings - 10th IEEE International Conference on Computer and Information Technology, CIT-2010, 7th IEEE International Conference on Embedded Software and Systems, ICESS-2010, ScalCom-2010
SP - 660
EP - 667
BT - Proceedings - 10th IEEE International Conference on Computer and Information Technology, CIT-2010, 7th IEEE International Conference on Embedded Software and Systems, ICESS-2010, ScalCom-2010
T2 - 10th IEEE International Conference on Computer and Information Technology, CIT-2010, 7th IEEE International Conference on Embedded Software and Systems, ICESS-2010, 10th IEEE Int. Conf. Scalable Computing and Communications, ScalCom-2010
Y2 - 29 June 2010 through 1 July 2010
ER -