RT Journal Article
T1 Cross Layer Adaptation of Check Intervals in Low Power Listening MAC Protocols for Lifetime  Improvement in Wireless Sensor Networks
A1 Escolar Díaz, María Soledad
A1 Chessa, Stefano
A1 Carretero Pérez, Jesús
A1 Marinescu, María Cristina
AB 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.
PB MDPI
SN 1424-8220
YR 2012
FD 2012-08-02
LK https://hdl.handle.net/10016/27904
UL https://hdl.handle.net/10016/27904
LA eng
NO This work has been partially funded by the Spanish Ministry of Science and Technology under the grant TIN2010-16497 “Técnicas Escalables de Entrada/Salida en Entornos Distribuidos y de Computatión de Altas Prestaciones”.
DS e-Archivo
RD 27 may. 2024