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» Game Theoretical Analysis of Cooperative Sourcing Scenarios
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JSAC
2011
127views more  JSAC 2011»
13 years 2 months ago
Opportunistic Multiple Access for Cognitive Radio Networks
—In this paper, opportunistic multiple access to the under-utilized channel resources is investigated. Exploiting source burstiness, secondary cognitive nodes utilizes primary no...
Amr A. El-Sherif, Ahmed K. Sadek, K. J. Ray Liu
INFOCOM
2011
IEEE
12 years 11 months ago
Converge-cast with MIMO
—This paper investigates throughput and delay based on a newly predominant traffic pattern, called converge-cast, where each of the n nodes in the network act as a destination w...
Luoyi Fu, Yi Qin, Xinbing Wang, Xue Liu
CORR
2007
Springer
113views Education» more  CORR 2007»
13 years 8 months ago
Network Coding over a Noisy Relay : a Belief Propagation Approach
Abstract— In recent years, network coding has been investigated as a method to obtain improvements in wireless networks. A typical assumption of previous work is that relay nodes...
Sichao Yang, Ralf Koetter
TIP
2008
90views more  TIP 2008»
13 years 7 months ago
Synthetic Aperture Hitchhiker Imaging
We introduce a novel synthetic-aperture imaging method for radar systems that rely on sources of opportunity. We consider receivers that fly along arbitrary, but known, flight traj...
Can Evren Yarman, Birsen Yazici
VLDB
2005
ACM
165views Database» more  VLDB 2005»
14 years 1 months ago
Semantic Adaptation of Schema Mappings when Schemas Evolve
Schemas evolve over time to accommodate the changes in the information they represent. Such evolution causes invalidation of various artifacts depending on the schemas, such as sc...
Cong Yu, Lucian Popa