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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 between node 10 and 0 in a 10-node linear topology with DC = 30%.
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f13-sensors-12-10511: End-to-end delay between node 10 and 0 in a 10-node linear topology with DC = 30%.

Mentions: In the 10-node linear topology, node 10 sends a data packet to node 0 (the sink) every 10 seconds. Within path(10, 0) node 10 is 10 hops away from node 0. All the packets travel along the same path to achieve the destination, i.e., there is no changes in the topology. Figure 13 shows the end-to-end delay between node 10 and node 0 obtained for the linear topology with DC = 30%. The time that a packet takes from the source to the destination is the end-to-end delay, which we compute as the difference of the time of transmission and the reception. Each packet takes a variable amount of time to reach node 0, due to the effect of the retransmissions and the accumulated latencies.


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 between node 10 and 0 in a 10-node linear topology with DC = 30%.
© Copyright Policy
Related In: Results  -  Collection

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

f13-sensors-12-10511: End-to-end delay between node 10 and 0 in a 10-node linear topology with DC = 30%.
Mentions: In the 10-node linear topology, node 10 sends a data packet to node 0 (the sink) every 10 seconds. Within path(10, 0) node 10 is 10 hops away from node 0. All the packets travel along the same path to achieve the destination, i.e., there is no changes in the topology. Figure 13 shows the end-to-end delay between node 10 and node 0 obtained for the linear topology with DC = 30%. The time that a packet takes from the source to the destination is the end-to-end delay, which we compute as the difference of the time of transmission and the reception. Each packet takes a variable amount of time to reach node 0, due to the effect of the retransmissions and the accumulated latencies.

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