NDLI: Network-Harmonized Scheduling for multi-application sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Gupta, V. Pereira, N. Gaur, S. Tovar, E. Rajkumar, R.
Copyright Year	2014
Description	Author affiliation: CISTER/INESC-TEC Res. Center, Polytech. Inst. of Porto, Porto, Portugal (Gupta, V.; Pereira, N.; Gaur, S.; Tovar, E.) \|\| Electr. & Comput. Eng, Carnegie Mellon Univ., Pittsburgh, PA, USA (Rajkumar, R.)
Abstract	Support for multiple concurrent applications is an important enabler for promoting the use of sensor networks as an infrastructure technology, where multiple users can deploy their applications independently. In such a scenario, different applications on a node may transmit packets at distinct periods, causing the node to change from sleep to active state more often, which negatively impacts the energy consumption of the whole network. In this paper, we propose to batch the transmissions together by defining a harmonizing period to align the transmissions from multiple applications at periodic boundaries. This harmonizing period is then leveraged to design a protocol that coordinates the transmissions across nodes and provides real-time guarantees in a multi-hop network. This protocol, which we call Network- Harmonized Scheduling (NHS), takes advantage of the periodicity introduced to assign offsets to nodes at different hop-levels such that collisions are always avoided, and deterministic behavior is enforced. NHS is a light-weight and distributed protocol that does not require any global state-keeping mechanism. We implemented NHS on the Contiki operating system and show how it can achieve a duty-cycle comparable to an ideal TDMA approach.
Starting Page	1
Ending Page	10
File Size	653657
Page Count	10
File Format	PDF
ISBN	9781479939534
DOI	10.1109/RTCSA.2014.6910505
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Schedules Spread spectrum communication Peer-to-peer computing Wireless sensor networks Time division multiple access Synchronization Medium-Access Control Wireless Sensor Networks Multi-hop Communications Routing
Content Type	Text
Resource Type	Article

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