A spatial correlation aware scheme for efficient data aggregation in Wireless Sensor Networks

Imane Horiya Brahmi, Soufiene Djahel, Damien Magoni, John Murphy

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Citations (Scopus)


One of the most popular and efficient methods for conserving energy in Wireless Sensor Networks (WSNs) is data aggregation. This technique usually introduces an additional delay in the transmission of data packets. The inherent trade-off between energy consumption and end-to-end delay imposes an important decision to be made by the nodes, mainly to determine the most appropriate time for aggregating local/transiting packets and forwarding the resulting packet(s) to the next hop towards the sink. Most of the solutions proposed so far are either unable to significantly reduce the overhead caused by the redundant transmissions, or require a long waiting time before aggregating the received packets. To overcome the above limitations, we propose a novel scheme that ensures efficient and fast packets aggregation in WSNs. This scheme defines optimal decision making policies at the cluster head level (i.e. in a cluster based topology) to determine the appropriate waiting time before aggregating the local data sampling, as well as data sampling received from other neighbor cluster heads. The obtained evaluation results confirm the efficiency of our scheme in terms of the achieved end-to-end transmission delay for periodic packets and the reduced overhead. These results reveal also that our scheme outperforms other three literature schemes (no aggregation, randomized waiting and full aggregation) as it ensures the best compromise for aggregation saving and delay reduction.

Original languageEnglish
Title of host publicationProceedings of the 40th Annual IEEE Conference on Local Computer Networks, LCN 2015
EditorsSalil Kanhere, Jens Tölle, Soumaya Cherkaoui
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages8
ISBN (Electronic)9781467367721, 9781467367738
Publication statusPublished - 28 Dec 2015
Externally publishedYes
Event40th Annual IEEE Conference on Local Computer Networks - Clearwater Beach, United States
Duration: 26 Oct 201529 Oct 2015
Conference number: 40


Conference40th Annual IEEE Conference on Local Computer Networks
Abbreviated titleLCN 2015
Country/TerritoryUnited States
CityClearwater Beach


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