130 search results - page 16 / 26 » Information Access in Africa: Problems with Every Channel |
SAINT
2008
IEEE
15 years 4 months ago
2008
IEEE
In this paper we present an online algorithm that attacks the problem of placing relay nodes in regions where high localized congestion is detected. Congestion refers to the netwo...
CCS
2006
ACM
15 years 1 months ago
2006
ACM
The usage control (UCON) model was introduced as a unified approach to capture a number of extensions for traditional access control models. While the policy specification flexibi...
CANS
2006
Springer
15 years 1 months ago
2006
Springer
We address the multicast stream authentication problem when the communication channel is under the control of an opponent who can drop, reorder or inject data. In such a network m...
TMC
2008
14 years 9 months ago
2008
Abstract--In wireless ad hoc networks, in addition to the well-known hidden terminal and exposed terminal problems, the locationdependent contention may cause serious unfairness an...
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SPAA
2012
ACM
13 years 7 days ago
2012
ACM
In this paper we study distributed algorithms on massive graphs where links represent a particular relationship between nodes (for instance, nodes may represent phone numbers and ...