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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

End-to-end delay for 10-node linear and 10-node tree topologies.
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f14-sensors-12-10511: End-to-end delay for 10-node linear and 10-node tree topologies.

Mentions: Figure 14 on the left presents the average end-to-end delay for a 10-node linear topology with only a source (node 10) for DC = 30%, 40% and 50%. We exclude the case of DC equal to 20% since it does not guarantee complete connectivity in the network. On the right hand side, we show the end-to-end delay for a 10-node tree topology for DC greater or equal to 20%, where nodes 5, 7 and 9 are data sources. Thus, we have: path(5, 0) = {5, 4, 2, 0}, path(7, 0) = {7, 6, 4, 2, 0} and path(9, 0) = {9, 8, 6, 4, 2, 0}. We show the average end-to-end delay within path(9, 0), which is the worst case.


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)

End-to-end delay for 10-node linear and 10-node tree topologies.
© Copyright Policy
Related In: Results  -  Collection

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

f14-sensors-12-10511: End-to-end delay for 10-node linear and 10-node tree topologies.
Mentions: Figure 14 on the left presents the average end-to-end delay for a 10-node linear topology with only a source (node 10) for DC = 30%, 40% and 50%. We exclude the case of DC equal to 20% since it does not guarantee complete connectivity in the network. On the right hand side, we show the end-to-end delay for a 10-node tree topology for DC greater or equal to 20%, where nodes 5, 7 and 9 are data sources. Thus, we have: path(5, 0) = {5, 4, 2, 0}, path(7, 0) = {7, 6, 4, 2, 0} and path(9, 0) = {9, 8, 6, 4, 2, 0}. We show the average end-to-end delay within path(9, 0), which is the worst case.

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