Poster Abstract: If You Have Time, Save Energy with Pull

Details Poster Abstract: If You Have Time, Save Energy with Pull Poster Abstract: If You Have Time, Save Energy with Pull

2011-03-29

arxiv.org/abs/1103.5695v1

Computer Science

Networking and Internet Architecture

2 pages, 3 figures

Scientific paper

We analyze push and pull for data collection in wireless sensor networks. Most applications to date use the traditional push approach, where nodes transmit sensed data immedi- ately to the sink. Using a pull approach, nodes store the data in their local flash memory, and only engage in commu- nication during dedicated collection phases. We show how one can transform an existing push-based collection protocol into a pull-based one, and compare the power consumption of both approaches on a 35-node testbed. Our results show that substantial energy gains are possible with pull, provided that the application can tolerate a long latency.

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