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MOBIHOC
2007
ACM
15 years 9 months ago
Allocating dynamic time-spectrum blocks in cognitive radio networks
A number of studies have shown the abundance of unused spectrum in the TV bands. This is in stark contrast to the overcrowding of wireless devices in the ISM bands. A recent trend...
Yuan Yuan, Paramvir Bahl, Ranveer Chandra, Thomas ...
ALGORITHMICA
2007
132views more  ALGORITHMICA 2007»
14 years 10 months ago
On the Feasibility of Time Estimation under Isolation Conditions in Wireless Sensor Networks
We study the problem of providing a sensor with an accurate estimate of the time, from a novel perspective which is complementary to the well-studied clock synchronization problem....
Daniela Tulone
WETICE
2003
IEEE
15 years 3 months ago
On Optimal Update Policies and Cluster Sizes for 2-Tier Distributed Systems
We try to analyze a generic model for 2-tier distributed systems, exploring the possibility of optimal cluster sizes from an information management perspective, such that the over...
Prasenjit Dey, Anwitaman Datta
INFOCOM
2003
IEEE
15 years 3 months ago
Exploiting Multiuser Diversity for Medium Access Control in Wireless Networks
— Multiuser diversity refers to a type of diversity present across different users in a fading environment. This diversity can be exploited by scheduling transmissions so that us...
Xiangping Qin, Randall A. Berry
CONEXT
2006
ACM
15 years 3 months ago
Proposition of a cross-layer architecture model for the support of QoS in ad-hoc networks
Due to the lack of built-in quality of service support, IEEE 802.11 ad-hoc networks presents serious defies in meeting the demands of multimedia applications. To overcome such ch...
Wafa Berrayana, Habib Youssef, Stéphane Loh...