Medians and beyond: new aggregation techniques for sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
TAG: a Tiny AGgregation service for Ad-Hoc sensor networks
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
Fast distributed algorithm for convergecast in ad hoc geometric radio networks
Journal of Parallel and Distributed Computing - Special issue: Algorithms for wireless and ad-hoc networks
Sensor Scheduling for Aggregate Monitoring inWireless Sensor Networks
SSDBM '07 Proceedings of the 19th International Conference on Scientific and Statistical Database Management
Aggregation convergecast scheduling in wireless sensor networks
Wireless Networks
Minimum data aggregation time problem in wireless sensor networks
MSN'05 Proceedings of the First international conference on Mobile Ad-hoc and Sensor Networks
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Due to existing and emerging applications in various situations, wireless sensor networks (WSNs) have emerged as a premier research topic. Data aggregation is a basic operation in Wireless Sensor Network. For an application which is aggregative in nature such as environment monitoring system or health monitoring system, the tree based data aggregation is the most efficient technique, in terms of energy and data collection time. But, when one of nodes stops responding due to energy loss or hardware malfunction or external cause such as fire, flood etc, then the rest of the nodes under that node will not be able to send their data even if there is some other path. In this paper we have tried to fix this issue by using secondary parent.