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Disentangling wireless sensing from mesh networking

Published: 28 June 2010 Publication History

Abstract

The resource demands of today's wireless mesh networking stacks hinder the progress of low-cost, low-power wireless sensor nodes. Optimizing wireless sensors means reducing costs, increasing lifetimes, and locating sensors close to the action. Adding mesh networking functions like IP routing and forwarding increases RAM and ROM requirements and demands substantial idle listening to forward others' traffic, all of which adds cost and increases power draw. We argue that an architectural separation between sensor and router, similar to what ZigBee and traditional IP networks advocate, would allow each node class to be better optimized to the task, matched to technology trends, and aligned with deployment patterns. Although trivial to implement on current platforms, for example by turning off router advertisements in an IPv6/6LoWPAN stack, reaping the full benefits of this approach requires evolving platform designs and revisiting the link and network layers of the stack. We examine the resulting implications on the system architecture.

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      cover image ACM Other conferences
      HotEmNets '10: Proceedings of the 6th Workshop on Hot Topics in Embedded Networked Sensors
      June 2010
      89 pages
      ISBN:9781450302654
      DOI:10.1145/1978642
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Published: 28 June 2010

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      Author Tags

      1. energy harvesting
      2. sensor networks
      3. system architecture

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