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AAIM
2007
Springer
120views Algorithms» more  AAIM 2007»
15 years 3 months ago
Online OVSF Code Assignment with Resource Augmentation
Abstract. Orthogonal Variable Spreading Factor (OVSF) code assignment is a fundamental problem in Wideband Code-Division MultipleAccess (W-CDMA) systems, which play an important ro...
Francis Y. L. Chin, Yong Zhang, Hong Zhu
CDC
2008
IEEE
145views Control Systems» more  CDC 2008»
15 years 6 months ago
Optimal sensor hop selection: Sensor energy minimization and network lifetime maximization with guaranteed system performance
— In this paper we consider state estimation carried over a sensor network. A fusion center forms a local multi-hop tree of sensors and gateways and fuses the data into a state e...
Ling Shi, Karl Henrik Johansson, Richard M. Murray
GIS
2010
ACM
14 years 9 months ago
Efficient indexing structure for scalable processing of spatial alarms
Spatial Alarms are reminders for mobile users upon their arrival of certain spatial location of interest. Spatial alarm processing requires meeting two demanding objectives: high ...
Myungcheol Doo, Ling Liu, Nitya Narasimhan, Venu V...
JNW
2006
88views more  JNW 2006»
14 years 11 months ago
A Genetic Algorithms Based Approach for Group Multicast Routing
Whereas multicast transmission in one-to-many communications allows the operator to drastically save network resources, it also makes the routing of the traffic flows more complex ...
Luca Sanna Randaccio, Luigi Atzori
97
Voted
ICC
2009
IEEE
122views Communications» more  ICC 2009»
15 years 6 months ago
Using Area Hierarchy for Multi-Resolution Storage and Search in Large Wireless Sensor Networks
—We consider multi-resolution storage, a technique for providing scalable adaptive data fidelity, necessary for many applications of large wireless sensor networks (WSNs). Altho...
Konrad Iwanicki, Maarten van Steen