Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Lifetime Bounds of Wireless Sensor Networks Preserving Perfect Sink Unobservability
AU - Bicakci, Kemal
AU - Bagci, Ibrahim Ethem
AU - Tavli, Bulent
PY - 2011/2
Y1 - 2011/2
N2 - In wireless sensor networks an attack to the base station (sink) can render the whole network useless. Hence, concealing the physical location of the sink may be necessary in certain circumstances. Previous studies addressing this challenging problem assume a weak adversary model. The problem has not been studied in the presence of an eavesdropper who has global knowledge for the entire network. Here, a naive solution is to employ fake sinks so that nodes send their data not only to the real sink but also to other locations. An alternative solution with less overhead could be provided when all nodes including base station equalize the values of their total incoming and outgoing flows as well as their energy expenditure. This way, no information about the sink location is revealed even when all communication within the network is monitored. In this paper, through a Linear Programming (LP) framework we analyze and compare lifetime limits of wireless sensor networks preserving sink location privacy with the aforementioned two approaches.
AB - In wireless sensor networks an attack to the base station (sink) can render the whole network useless. Hence, concealing the physical location of the sink may be necessary in certain circumstances. Previous studies addressing this challenging problem assume a weak adversary model. The problem has not been studied in the presence of an eavesdropper who has global knowledge for the entire network. Here, a naive solution is to employ fake sinks so that nodes send their data not only to the real sink but also to other locations. An alternative solution with less overhead could be provided when all nodes including base station equalize the values of their total incoming and outgoing flows as well as their energy expenditure. This way, no information about the sink location is revealed even when all communication within the network is monitored. In this paper, through a Linear Programming (LP) framework we analyze and compare lifetime limits of wireless sensor networks preserving sink location privacy with the aforementioned two approaches.
KW - Wireless sensor networks
KW - energy efficiency
KW - linear programming
KW - location privacy
KW - network lifetime
KW - sink location
U2 - 10.1109/LCOMM.2011.010311.101885
DO - 10.1109/LCOMM.2011.010311.101885
M3 - Journal article
VL - 15
SP - 205
EP - 207
JO - IEEE Communications Letters
JF - IEEE Communications Letters
SN - 1089-7798
IS - 2
ER -