Title :
Dynamic Data Aggregation in Wireless Sensor Networks
Author :
Commuri, S. ; Tadigotla, V.
Author_Institution :
Oklahoma Univ.., Norman
Abstract :
Performance improvement in wireless sensor networks (WSNs) through the use of reconfigurable cluster heads is addressed in this paper. The performance of a WSN is limited by the scarce on-board power in each sensor node. Since the sensed data in the WSN is transmitted to a sink from node to node in a multi-hop fashion, elimination of the redundancies in the data and aggregation of the data from multiple sources can improve the throughput and lifetime of the network. This, in practice, is infeasible because the aggregation to be performed depends on the requirements of the end user/application and is either unknown at the time of deployment or changes over time. In this paper, the problem of implementing dynamic data aggregation in WSNs is addressed through the design of reconfigurable cluster heads (RCHs) using Field Programmable Gate Arrays (FPGAs). Our results demonstrate that different data aggregation algorithms can be efficiently implemented on the RCHs in run-time. Such an implementation provides the necessary flexibility demanded by applications, while resulting in significant reduction in the query processing time and the overall power consumption in the network.
Keywords :
data communication; field programmable gate arrays; protocols; telecommunication network routing; wireless sensor networks; data redundancy; dynamic data aggregation; field programmable gate arrays; multihop data transmission; on-board power; query processing; reconfigurable cluster heads; sensor node; wireless sensor networks; Ad hoc networks; Control systems; Data mining; Field programmable gate arrays; Intelligent control; Monitoring; Routing protocols; Runtime; Throughput; Wireless sensor networks;
Conference_Titel :
Intelligent Control, 2007. ISIC 2007. IEEE 22nd International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0440-7
Electronic_ISBN :
2158-9860
DOI :
10.1109/ISIC.2007.4450851