9401 search results - page 246 / 1881 » Wireless Networks |
187
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WSNA
2003
ACM
15 years 11 months ago
2003
ACM
One fundamental issue in sensor networks is the coverage problem, which reflects how well a sensor network is monitored or tracked by sensors. In this paper, we formulate this pr...
158
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CORR
2006
Springer
15 years 6 months ago
2006
Springer
Coverage and connectivity issues of three-dimensional (3D) networks are addressed in [2], but that work assumes that a node can be placed at any arbitrary location. In this work, ...
191
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TMC
2011
15 years 1 months ago
2011
—We propose a method to compute a probably approximately correct (PAC) normalized histogram of observations with a refresh rate of Âð1Þ time units per histogram sample on a ra...
154
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GLOBECOM
2008
IEEE
16 years 18 days ago
2008
IEEE
—This paper investigates the tradeoff between throughput and feedback delay of limited feedback beamforming in indoor wireless channels with a practical MIMO-OFDM prototype. Past...
166
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GLOBECOM
2007
IEEE
15 years 10 months ago
2007
IEEE
Wireless sensor networks have been widely used in many surveillance applications. Due to the importance of sensor nodes in such applications, certain level of protection needs to b...