512 search results - page 18 / 103 » Random Access Systems with a Time Varying Channel |
138
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JSAC
2008
15 years 3 months ago
2008
Abstract--We address several inter-related aspects of underwater network design within the context of a cross-layer approach. We first highlight the impact of key characteristics o...
138
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INFOCOM
2008
IEEE
15 years 10 months ago
2008
IEEE
—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 m...
117
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
— In this paper, we present an analytical method to evaluate the bit error rate (BER) of the ultra-wideband (UWB) system in the IEEE 802.15.4a standardized channel model. The IEE...
169
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VTC
2010
IEEE
15 years 2 months ago
2010
IEEE
—The IEEE 1609.4 standard has been proposed to provide multi-channel operations in wireless access for vehicular environments (WAVE), where all the channels are periodically sync...
156
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MOBICOM
2010
ACM
15 years 4 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...