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Cross Layer Adaptation of Check intervals in low power listening MAC protocols for lifetime improvement in Wireless Sensor Networks.

Escolar S, Chessa S, Carretero J, Marinescu MC - Sensors (Basel) (2012)

Bottom Line: We propose Cross Layer Adaptation of Check intervals (CLAC), a novel protocol intended to reduce the energy consumption of the nodes without significantly increasing the delay.CLAC uses routing and MAC layer information to compute a delay that matches the packet arrival time.The simulation results confirm that CLAC improves the network lifetime at no additional packet loss and without affecting the end-to-end delay.

View Article: PubMed Central - PubMed

Affiliation: Computer Science Department, University Carlos III of Madrid, Avda. Universidad 30, Madrid 28911, Spain. mariasoledad.escolar@uc3m.es

ABSTRACT
Preamble sampling-based MAC protocols designed for Wireless Sensor Networks (WSN) are aimed at prolonging the lifetime of the nodes by scheduling their times of activity. This scheduling exploits node synchronization to find the right trade-off between energy consumption and delay. In this paper we consider the problem of node synchronization in preamble sampling protocols. We propose Cross Layer Adaptation of Check intervals (CLAC), a novel protocol intended to reduce the energy consumption of the nodes without significantly increasing the delay. Our protocol modifies the scheduling of the nodes based on estimating the delay experienced by a packet that travels along a multi-hop path. CLAC uses routing and MAC layer information to compute a delay that matches the packet arrival time. We have implemented CLAC on top of well-known routing and MAC protocols for WSN, and we have evaluated our implementation using the Avrora simulator. The simulation results confirm that CLAC improves the network lifetime at no additional packet loss and without affecting the end-to-end delay.

No MeSH data available.


Related in: MedlinePlus

Deployments of 10- and 22-nodes tree topology.
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f6-sensors-12-10511: Deployments of 10- and 22-nodes tree topology.

Mentions: Each application was tested on two different network topologies: (1) two linear topologies of 10 and 20 nodes; and (2) two tree-based topologies as shown in Figure 6, a binary tree of 10 nodes and a tree with 22 nodes where each node has up to three children (see Figure 6 for details). We repeated each experiment 5 times and each experiment took 600 virtual seconds. The 96% confidence interval was at most 0.01 for all experiments. For each experiment we determine the network lifetime, the end-to-end delay and the packet loss ratio. We compare the results with those obtained using CTP/BoX-MAC when no communication delays are accounted for.


Cross Layer Adaptation of Check intervals in low power listening MAC protocols for lifetime improvement in Wireless Sensor Networks.

Escolar S, Chessa S, Carretero J, Marinescu MC - Sensors (Basel) (2012)

Deployments of 10- and 22-nodes tree topology.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3472841&req=5

f6-sensors-12-10511: Deployments of 10- and 22-nodes tree topology.
Mentions: Each application was tested on two different network topologies: (1) two linear topologies of 10 and 20 nodes; and (2) two tree-based topologies as shown in Figure 6, a binary tree of 10 nodes and a tree with 22 nodes where each node has up to three children (see Figure 6 for details). We repeated each experiment 5 times and each experiment took 600 virtual seconds. The 96% confidence interval was at most 0.01 for all experiments. For each experiment we determine the network lifetime, the end-to-end delay and the packet loss ratio. We compare the results with those obtained using CTP/BoX-MAC when no communication delays are accounted for.

Bottom Line: We propose Cross Layer Adaptation of Check intervals (CLAC), a novel protocol intended to reduce the energy consumption of the nodes without significantly increasing the delay.CLAC uses routing and MAC layer information to compute a delay that matches the packet arrival time.The simulation results confirm that CLAC improves the network lifetime at no additional packet loss and without affecting the end-to-end delay.

View Article: PubMed Central - PubMed

Affiliation: Computer Science Department, University Carlos III of Madrid, Avda. Universidad 30, Madrid 28911, Spain. mariasoledad.escolar@uc3m.es

ABSTRACT
Preamble sampling-based MAC protocols designed for Wireless Sensor Networks (WSN) are aimed at prolonging the lifetime of the nodes by scheduling their times of activity. This scheduling exploits node synchronization to find the right trade-off between energy consumption and delay. In this paper we consider the problem of node synchronization in preamble sampling protocols. We propose Cross Layer Adaptation of Check intervals (CLAC), a novel protocol intended to reduce the energy consumption of the nodes without significantly increasing the delay. Our protocol modifies the scheduling of the nodes based on estimating the delay experienced by a packet that travels along a multi-hop path. CLAC uses routing and MAC layer information to compute a delay that matches the packet arrival time. We have implemented CLAC on top of well-known routing and MAC protocols for WSN, and we have evaluated our implementation using the Avrora simulator. The simulation results confirm that CLAC improves the network lifetime at no additional packet loss and without affecting the end-to-end delay.

No MeSH data available.


Related in: MedlinePlus