6274 search results - page 1218 / 1255 » From query complexity to computational complexity |
113
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MSWIM
2009
ACM
15 years 10 months ago
2009
ACM
In a Multi-hop Wireless Networks (MHWN), packets are routed between source and destination using a chain of intermediate nodes; chains are a fundamental communication structure in...
137
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IPSN
2009
Springer
15 years 10 months ago
2009
Springer
We consider the problem of monitoring spatial phenomena, such as road speeds on a highway, using wireless sensors with limited battery life. A central question is to decide where ...
138
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ESA
2009
Springer
15 years 10 months ago
2009
Springer
In this paper, we study the complexity and approximability of the orthogonal frequency-division multiple access (OFDMA) scheduling problem with uniformly related communication chan...
129
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CHIMIT
2009
ACM
15 years 10 months ago
2009
ACM
End users are often frustrated by unexpected problems while using networked software, leading to frustrated calls to the help desk seeking solutions. However, trying to locate the...
136
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SACMAT
2009
ACM
15 years 10 months ago
2009
ACM
Traditional access control models, such as Role-Based Access Control (RBAC), do not take into account contextual information, such as location and time, for making access decision...