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136
Voted
GLOBECOM
2007
IEEE
15 years 10 months ago
2007
IEEE
Abstract—We explore the performance tradeoff between opportunistic and regulated access inherent in the design of multiuser cognitive radio networks. We consider a cognitive radi...
120
Voted
ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
Abstract— In ultra-wideband impulse radio (UWB-IR) systems, multipath-delayed received pulses may overlap if two consecutive multipaths arrive within less than the pulse duration...
108
Voted
ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
Abstract— We consider the problem of designing space-timefrequency linear dispersion (LD) codes in wideband multipleinput multiple-output (MIMO) antenna systems employing orthogo...
114
Voted
ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
Abstract—We address the problem of maximizing the minimum signal-to-interference ratio (SIR) in a multiuser system. In the context of resource allocation, this is referred to as ...
127
Voted
ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
Abstract— We propose a power and constellation-size adaptation scheme for the multicast system employing multilevel quadrature amplitude modulation (MQAM) with discrete constella...