20 search results - page 3 / 4 » Opportunistic Feedback in OFDMA Downlink |
ICC
2008
IEEE
13 years 12 months ago
2008
IEEE
—This paper studies the problem of minimizing symbol loss probability while keeping the system throughput above a certain threshold in downlink transmission of future OFDMA based...
VTC
2006
IEEE
13 years 11 months ago
2006
IEEE
Abstract— In this paper, we consider the unclaimed subcarriers that no user feeds back in an opportunistic OFDMA system with a per sub-carrier power constraint. Unclaimed subcarr...
VTC
2008
IEEE
13 years 12 months ago
2008
IEEE
— This paper addresses advanced radio resource management (RRM) algorithms for multiple-input multipleoutput (MIMO) transmission schemes in downlink OFDMA systems. The analysis c...
ICC
2009
IEEE
13 years 3 months ago
2009
IEEE
In the OFDMA downlink, obtaining Channel State Information (CSI) from users is necessary for the Base Station (BS) to optimize network performance by intelligently allocating resou...
CORR
2007
Springer
13 years 5 months ago
2007
Springer
Opportunistic scheduling and beamforming schemes are proposed for multiuser MIMO-SDMA downlink systems with linear combining in this work. Signals received from all antennas of ea...