69 search results - page 3 / 14 » Idle Channel Time Estimation in Multi-Hop Wireless Networks |
CORR
2012
Springer
12 years 3 months ago
2012
Springer
—IEEE 802.11 DCF is the MAC protocol currently used in wireless LANs. 802.11 DCF is inefficient due to two types of overhead; channel idle time and collision time. This paper pr...
PIMRC
2010
IEEE
13 years 5 months ago
2010
IEEE
We propose an opportunistic channel access scheme for cognitive radio-enabled secondary networks. In our work, we model the channel occupancy due to Primary User (PU) activity as a...
CDC
2008
IEEE
14 years 2 months ago
2008
IEEE
— We present a dynamic optimization approach to save energy in Wireless Sensor Networks (WSN) at the link level. One of the main sources of energy waste in a WSN is idle listenin...
GLOBECOM
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract—We propose a model-based channel access mechanism for cognitive radio-enabled secondary network, which opportunistically uses the channel of an unslotted primary network...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
— We analyze the performance of a wireless system that allows opportunistic spectrum sharing. The system consists of a set of primary users sharing a set of channels over a cover...