TY - GEN
T1 - Sift
T2 - 3rd European Workshop on Wireless Sensor Networks, EWSN 2006
AU - Jamieson, Kyle
AU - Balakrishnan, Hari
AU - Tay, Y. C.
PY - 2006
Y1 - 2006
N2 - Nodes in sensor networks often encounter spatially-correlated contention, where multiple nodes in the same neighborhood all sense an event they need to transmit information about. Furthermore, in many sensor network applications, it is sufficient if a subset of the nodes that observe the same event report it. We show that traditional carrier-sense multiple access (CSMA) protocols for sensor networks do not handle the first constraint adequately, and do not take advantage of the second property, leading to degraded latency as the network scales in size. We present Sift, a medium access control (MAC) protocol for wireless sensor networks designed with the above observations in mind. We show using simulations that as the size of the sensor network scales up to 500 nodes, Sift can offer up to a 7-fold latency reduction compared to other protocols, while maintaining competitive throughput.
AB - Nodes in sensor networks often encounter spatially-correlated contention, where multiple nodes in the same neighborhood all sense an event they need to transmit information about. Furthermore, in many sensor network applications, it is sufficient if a subset of the nodes that observe the same event report it. We show that traditional carrier-sense multiple access (CSMA) protocols for sensor networks do not handle the first constraint adequately, and do not take advantage of the second property, leading to degraded latency as the network scales in size. We present Sift, a medium access control (MAC) protocol for wireless sensor networks designed with the above observations in mind. We show using simulations that as the size of the sensor network scales up to 500 nodes, Sift can offer up to a 7-fold latency reduction compared to other protocols, while maintaining competitive throughput.
UR - http://www.scopus.com/inward/record.url?scp=33745519055&partnerID=8YFLogxK
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U2 - 10.1007/11669463_20
DO - 10.1007/11669463_20
M3 - Conference contribution
AN - SCOPUS:33745519055
SN - 3540321586
SN - 9783540321583
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 260
EP - 275
BT - Wireless Sensor Networks - Third European Workshop, EWSN 2006, Proceedings
Y2 - 13 February 2006 through 15 February 2006
ER -