2580 search results - page 135 / 516 » Systems for human-powered mobile computing |
MM
2009
ACM
15 years 4 months ago
2009
ACM
We consider the problem of broadcasting multiple variable-bit-rate (VBR) video streams from a base station to many mobile devices over a wireless network, so that: (i) perceived q...
BIRTHDAY
2008
Springer
15 years 7 days ago
2008
Springer
Abstract. We present a Mobile-Ambients-based process calculus to describe context-aware computing in an infrastructure-based Ubiquitous Computing setting. In our calculus, computin...
MOBISYS
2008
ACM
15 years 9 months ago
2008
ACM
Mobile phones have the potential to be useful agents for their owners by detecting and reporting situations that are of interest. Several challenges emerge in the case of detectin...
TSP
2008
14 years 10 months ago
2008
We propose a wireless fading channel prediction algorithm for a pilot-symbol aided Orthogonal Frequency Division Multiplexing (OFDM) system. Assuming a doubly selective (time and ...
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MOBICOM
2010
ACM
14 years 10 months ago
2010
ACM
Information on site-specific spectrum characteristics is essential to evaluate and improve the performance of wireless networks. However, it is usually very costly to obtain accur...