623 search results - page 4 / 125 » Constrained opportunistic power control in wireless networks |
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VTC
2008
IEEE
15 years 3 months ago
2008
IEEE
This paper considers a scenario in which a secondary user makes opportunistic use of a channel allocated to some primary network. The primary network operates in a time-slotted ma...
TMC
2010
14 years 7 months ago
2010
—We consider a point-to-multipoint cognitive radio network that shares a set of channels with a primary network. Within the cognitive radio network, a base station controls and s...
116
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INFOCOM
2011
IEEE
14 years 27 days ago
2011
IEEE
—We formulate the problem of delay constrained energy-efficient broadcast in cooperative multihop wireless networks. We show that this important problem is not only NPcomplete, ...
SAC
2009
ACM
15 years 2 months ago
2009
ACM
Wireless sensor networks (WSNs) are subject to significant resource constraints. Particularly, routing protocols for lowrate WSNs suffer from maintaining routing metrics and sta...
INFOCOM
2003
IEEE
15 years 2 months ago
2003
IEEE
—We consider dynamic routing and power allocation for a wireless network with time-varying channels. The network consists of power constrained nodes that transmit over wireless l...