TY - GEN
T1 - Residual energy-based transmission schemes for event reporting wireless sensor networks
AU - Guzmán-Medina, Carlos A.
AU - Rivero-Angeles, Mario E.
AU - Rubino, Gerardo
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/10/21
Y1 - 2014/10/21
N2 - WSNs are complex systems that are mainly limited by the battery life of the nodes in order to have an adequate performance. In most cases, it is possible to have a re-deployment of new nodes in order to prolong the systems lifetime. This leads to a situation where some nodes have a low energy level while other nodes (the majority of nodes instants after the re-deployment procedure) have high energy levels. In this environments, it is clear that ancient nodes, those with low energy level, have to contend for the shared medium against the majority of high energy nodes. As such, the remaining battery life of low energy nodes would be rapidly consumed. In this paper, we propose to extend the battery life of low energy nodes by means of assigning prioritized access to the shared channel to those nodes in order to content among a low population of such nodes, while delaying the contention access of high energy nodes which can support higher number of collisions before energy depletion. This is done by studying two different transmission strategies referred to as 'hard' and 'soft' transmission probabilities. Results show that, a soft transmission strategy achieves better results in terms of reduced energy consumption than both the conventional protocol or a hard transmission assignment.
AB - WSNs are complex systems that are mainly limited by the battery life of the nodes in order to have an adequate performance. In most cases, it is possible to have a re-deployment of new nodes in order to prolong the systems lifetime. This leads to a situation where some nodes have a low energy level while other nodes (the majority of nodes instants after the re-deployment procedure) have high energy levels. In this environments, it is clear that ancient nodes, those with low energy level, have to contend for the shared medium against the majority of high energy nodes. As such, the remaining battery life of low energy nodes would be rapidly consumed. In this paper, we propose to extend the battery life of low energy nodes by means of assigning prioritized access to the shared channel to those nodes in order to content among a low population of such nodes, while delaying the contention access of high energy nodes which can support higher number of collisions before energy depletion. This is done by studying two different transmission strategies referred to as 'hard' and 'soft' transmission probabilities. Results show that, a soft transmission strategy achieves better results in terms of reduced energy consumption than both the conventional protocol or a hard transmission assignment.
KW - Event Detection Wireless Sensor Networks
KW - Residual energy
KW - cluster-based
KW - transmission strategies
UR - http://www.scopus.com/inward/record.url?scp=84911974508&partnerID=8YFLogxK
U2 - 10.1109/ISWCS.2014.6933327
DO - 10.1109/ISWCS.2014.6933327
M3 - Contribución a la conferencia
AN - SCOPUS:84911974508
T3 - 2014 11th International Symposium on Wireless Communications Systems, ISWCS 2014 - Proceedings
SP - 95
EP - 99
BT - 2014 11th International Symposium on Wireless Communications Systems, ISWCS 2014 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 11th International Symposium on Wireless Communications Systems, ISWCS 2014
Y2 - 26 August 2014 through 29 August 2014
ER -