Increasing ZigBee network lifetime with X-MAC

Suarez, Pablo and Renmarker, Carl-Gustav and Voigt, Thiemo and Dunkels, Adam (2008) Increasing ZigBee network lifetime with X-MAC. In: The REALWSN 2008 Workshop on Real-World Wireless Sensor Networks, 1 April 2008, Glasgow, Scotland. (In Press)

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The ZigBee standard builds on the assumption that infrastructure nodes have a constant power supply. ZigBee therefore does not provide any power-saving mechanisms for routing nodes, which limits the lifetime of a battery-powered ZigBee networks to a few days. This short lifetime drastically restricts the possible application scenarios for ZigBee. To expand the usefulness of ZigBee, we present a ZigBee implementation where we replace the default ZigBee MAC protocol with the power-saving MAC protocol X-MAC. Our results show that X-MAC reduces the power consumption for ZigBee routing nodes with up to 90%, leading to a ten-fold increase in network lifetime at the price of a slight increase in network latency. Furthermore, we are the first to experimentally quantify the energy-efficiency of X-MAC in a multi-hop scenario. Our results indicate that X-MAC reduces the power consumption of idle nodes that are within communication range of two communicating nodes, suggesting that X-MAC may be able to mitigate the hot-spot problem in sensor networks.

Item Type:Conference or Workshop Item (Paper)
ID Code:2765
Deposited By:Mattias Jacobsson
Deposited On:08 Sep 2009
Last Modified:18 Nov 2009 16:14

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