5657 search results - page 400 / 1132 » Micropayments for Wireless Communications |
186
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ITICSE
2010
ACM
15 years 7 months ago
2010
ACM
Teaching wireless sensor networks (WSNs) at the undergraduate level is both challenging and rewarding. WSNs include low-level programming and debugging, power-aware operations, no...
205
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JCP
2008
15 years 6 months ago
2008
In this paper we propose a distributed algorithm for solving the positioning problem in ad-hoc wireless networks. The method is based on the capability of the nodes to measure the ...
187
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ICIP
2003
IEEE
16 years 8 months ago
2003
IEEE
Orthogonal Frequency Division Multiplexing (OFDM) has been adopted in many broadband wireless communication standards. In OFDM systems, channel estimation is a crucial module in co...
216
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IPSN
2009
Springer
16 years 1 months ago
2009
Springer
We present an algorithm for data delivery to mobile sinks in wireless sensor networks. Our algorithm is based on information potentials, which we extend to account for mobility. W...
238
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GLOBECOM
2009
IEEE
16 years 1 months ago
2009
IEEE
—A key technology in cooperative communications is distributed space-time coding (DSTC) which achieves spatial diversity gain from multiple relays. A novel DSTC, called randomize...