2155 search results - page 233 / 431 » Mobile Environmental Information Systems |
187
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ICC
2009
IEEE
15 years 4 months ago
2009
IEEE
In the OFDMA downlink, obtaining Channel State Information (CSI) from users is necessary for the Base Station (BS) to optimize network performance by intelligently allocating resou...
177
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CORR
2006
Springer
15 years 6 months ago
2006
Springer
Multiple transmit antennas in a downlink channel can provide tremendous capacity (i.e. multiplexing) gains, even when receivers have only single antennas. However, receiver and tra...
166
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CHI
2007
ACM
16 years 7 months ago
2007
ACM
Technologies can be used ? or appropriated ? in different ways by different users, but how do the use patterns evolve, and how can design facilitate such evolution? This paper app...
189
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SIGCOMM
2009
ACM
16 years 1 months ago
2009
ACM
This demo illustrates the benefits of BitHoc, a standalone protocol for content sharing among spontaneous communities of mobile handhelds using wireless multi-hop connections. Bi...
142
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INFOCOM
2007
IEEE
16 years 25 days ago
2007
IEEE
Abstract— Evaluating and quantifying trust stimulates collaboration in mobile ad hoc networks (MANETs). Many existing reputation systems sharply divide the trust value into right...