439 search results - page 72 / 88 » Channel Modeling of Wireless Networks in Tunnels |
JSAC
2008
13 years 8 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...
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
—In this paper we compare and enhance the three prevailing approaches of IEEE 802.11e Performance analysis. Specifically, the first model utilizes a Markov Chain to describe th...
RTCSA
2008
IEEE
14 years 2 months ago
2008
IEEE
· Modelling the fundamental performance limits of Wireless Sensor Networks (WSNs) is of paramount importance to understand the behaviour of WSN under worst-case conditions and to...
MOBICOM
2010
ACM
13 years 8 months ago
2010
ACM
Guardbands are designed to insulate transmissions on adjacent frequencies from mutual interference. As more devices in a given area are packed into orthogonal wireless channels, c...
INFOCOM
2007
IEEE
14 years 2 months ago
2007
IEEE
Abstract— In this paper we evaluate interactions among flowlevel performance metrics when integrating QoS and best effort flows in a wireless system using opportunistic schedul...