TY - GEN
T1 - Location-unaware sensing range assignment in sensor networks
AU - Younis, Ossama
AU - Ramasubramanian, Srinivasan
AU - Krunz, Marwan
PY - 2007
Y1 - 2007
N2 - We study field-monitoring applications in which sensors are deployed in large numbers and the sensing process is expensive. In such applications, nodes should use the minimum possible sensing ranges to prolong the "coverage time" of the network. We investigate how to determine such minimum ranges in a distributed fashion when the nodes are location-unaware. We develop a distributed protocol (SRAP) that assigns shorter ranges to nodes with less remaining batteries. To handle location-unawareness, we develop a novel algorithm (VICON) for determining the virtual coordinates of the neighbors of each sensor. VICON relies on approximate neighbor distances and 2-hop neighborhood information. Our simulations indicate that SRAP results in significant coverage time improvement even under inaccurate distance estimation.
AB - We study field-monitoring applications in which sensors are deployed in large numbers and the sensing process is expensive. In such applications, nodes should use the minimum possible sensing ranges to prolong the "coverage time" of the network. We investigate how to determine such minimum ranges in a distributed fashion when the nodes are location-unaware. We develop a distributed protocol (SRAP) that assigns shorter ranges to nodes with less remaining batteries. To handle location-unawareness, we develop a novel algorithm (VICON) for determining the virtual coordinates of the neighbors of each sensor. VICON relies on approximate neighbor distances and 2-hop neighborhood information. Our simulations indicate that SRAP results in significant coverage time improvement even under inaccurate distance estimation.
UR - http://www.scopus.com/inward/record.url?scp=37249011864&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37249011864&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-72606-7_11
DO - 10.1007/978-3-540-72606-7_11
M3 - Conference contribution
AN - SCOPUS:37249011864
SN - 9783540726050
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 120
EP - 131
BT - NETWORKING 2007 Ad Hoc and Sensor Networks, Wireless Networks, Next Generation Internet - 6th International IFIP-TC6 Networking Conference, Proceedings
A2 - Akyildiz, Ian F.
A2 - Sivakumar, Raghupathy
A2 - Ekici, Eylem
A2 - de Oliveira, Jaudelice Cavalcante
A2 - McNair, Janise
PB - Springer-Verlag
T2 - 6th International IFIP-TC6 Networking Conference - NETWORKING 2007 Ad Hoc and Sensor Networks, Wireless Networks, Next Generation Internet
Y2 - 14 May 2007 through 18 May 2007
ER -