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Title: Priority handling aggregation technique (PHAT) for wireless sensor networks
Authors: Koubias, Stavros A.
Tsitsipis, Dimitris
Dima, Sofia Maria
Kritikakou, Angeliki S. 
Panagiotou, Christos F.
Gialelis, John V.
Michail, Harris 
Keywords: Aggregation techniques
Data aggregation
Hybrid techniques
Incoming packets
Low priorities
Power capability
Traffic loads
Wireless sensor network (WSNs)
Energy utilization
Factory automation
Wireless sensor networks
Issue Date: 2012
Source: 17th Conference on Emerging Technologies & Factory Automation (ETFA), Krakow, Poland, 17-21 September, 2012
Abstract: Wireless Sensor Networks (WSNs) have limited power capabilities, whereas they serve applications which usually require specific packets, i.e. High Priority Packets (HPP), to be delivered before a deadline. Hence, it is essential to reduce the energy consumption and to have real-time behavior. To achieve this goal we propose a hybrid technique which explores the benefits of data aggregation without data size reduction in combination with prioritized queues. The energy consumption is reduced by appending data from incoming packets with already buffered Low Priority Packets (LPP). The real-time behavior is achieved by directly forwarding the HPP to the next node. Our study explores the impact of the proposed hybrid technique in several all-to-one data flow scenarios with various traffic loads, wait time intervals and percentage of HPP. Our results show gain up to 23,3% in packet loss and 36,6% in energy consumption compared with the direct forwarding of packets. 2012 IEEE.
DOI: 10.1109/ETFA.2012.6489574
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

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