369 search results - page 3 / 74 » A Distributed Opportunistic Access Scheme for OFDMA Systems |
JSAC
2008
13 years 8 months ago
2008
Abstract--Optimal tone allocation in downlink OFDMA networks is a non-convex NP-hard problem that requires extensive feedback for channel information. In this paper, two constantco...
GLOBECOM
2009
IEEE
14 years 3 months ago
2009
IEEE
Abstract— We propose an intercell downlink orthogonal frequency division multiple access (OFDMA) scheduling technique in a sectorized cellular network. Adjacent sectors from neig...
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
— In this paper, the author studies the sum throughput maximization with proportional fair scheduling (PFS) for downlink orthogonal frequency division multiple access (OFDMA) cha...
GLOBECOM
2009
IEEE
13 years 6 months ago
2009
IEEE
Maintaining fairness using weighting factors is a common approach in resource allocation. However, computing weighting factors for multiservice wireless networks is not trivial bec...
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
Abstract— Adaptive transmission techniques including transmit beamforming, precoding, and opportunistic scheduling offer high spectral efficiency when channel state information ...