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ICPPW
2005
IEEE
15 years 5 months ago
2005
IEEE
Energy constraints in a wireless sensor network are crucial issues criticallyaffectingthe network lifetime and connectivity. To realize true energysavingin a wireless environment,t...
TCOM
2008
14 years 11 months ago
2008
We consider cross-layer adaptive transmission for a single-user system with stochastic data traffic and a timevarying wireless channel. The objective is to vary the transmit power ...
ICC
2008
IEEE
15 years 6 months ago
2008
IEEE
—Cognitive radios have the ability to sense their RF environment and adapt their transmission parameters to perform optimally in any situation. Part of this involves selecting th...
TWC
2008
14 years 11 months ago
2008
We consider beamforming assisted detection for multiple antenna aided multiuser systems that employ the bandwidth efficient quadrature amplitude modulation scheme. A minimum symbol...
GLOBECOM
2008
IEEE
15 years 6 months ago
2008
IEEE
— We present a crosslayer framework for optimizing the performance of wireless networks as measured by applications or upper layer protocols. The approach combines adaptive modul...