Sciweavers

116 search results - page 7 / 24
» Utility Constrained Energy Minimization In Aloha Networks
Sort
View
IWCMC
2009
ACM
15 years 4 months ago
Optimal cooperative spectrum sensing in cognitive sensor networks
This paper addresses the problem of optimal cooperative spectrum sensing in a cognitive-enabled sensor network where cognitive sensors can cooperate in the sensing of the spectrum...
Hai Ngoc Pham, Yan Zhang, Paal E. Engelstad, Tor S...
GLOBECOM
2008
IEEE
14 years 9 months ago
Energy Efficient Estimation of Gaussian Sources over Inhomogeneous Gaussian MAC Channels
In this paper, we first provide a joint source and channel coding (JSCC) approach in estimating Gaussian sources over Gaussian MAC channels, as well as its sufficient and necessary...
Shuangqing Wei, Rajgopal Kannan, S. Sitharama Iyen...
EWSN
2007
Springer
15 years 9 months ago
An Energy-Efficient K-Hop Clustering Framework for Wireless Sensor Networks
Many applications in wireless sensor networks (WSNs) benefit significantly from organizing nodes into groups, called clusters, because data aggregation and data filtering applied i...
Quanbin Chen, Jian Ma, Yanmin Zhu, Dian Zhang, Lio...
CDC
2008
IEEE
150views Control Systems» more  CDC 2008»
15 years 4 months ago
Optimal dynamic sleep time control in Wireless Sensor Networks
— We present a dynamic optimization approach to save energy in Wireless Sensor Networks (WSN) at the link level. One of the main sources of energy waste in a WSN is idle listenin...
Xu Ning, Christos G. Cassandras
PERCOM
2004
ACM
15 years 9 months ago
Energy-Aware Media Transcoding in Wireless Systems
In distributed systems, transcoding techniques have been used to customize multimedia objects, utilizing trade-offs between the quality and sizes of these objects to provide diffe...
Christian Poellabauer, Karsten Schwan