512 search results - page 23 / 103 » Random Access Systems with a Time Varying Channel |
174
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JSAC
2008
15 years 4 months ago
2008
We consider opportunistic spectrum access (OSA) strategies for a transmitter in a multichannel wireless system, where a channel may or may not be available and the transmitter must...
139
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WIOPT
2005
IEEE
15 years 9 months ago
2005
IEEE
In this paper we develop distributed approaches for power allocation and scheduling in wireless access networks. We consider a model where users communicate over a set of parallel...
165
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TCOM
2010
14 years 10 months ago
2010
Consider independent and identically distributed exponential random variables (r.vs) 1, 2, . . . , and positive scalars 1, 2, . . . , . In this letter, we present the probability...
199
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JSW
2008
15 years 4 months ago
2008
In a mobile computing system, users carrying portable devices can access database services from any location without requiring a fixed position in the networking environment. Some ...
133
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CC
2008
Springer
15 years 4 months ago
2008
Springer
There exists a positive constant < 1 such that for any function T(n) n and for any problem L BPTIME(T(n)), there exists a deterministic algorithm running in poly(T(n)) time w...