27 search results - page 2 / 6 » An Analysis on Uplink OFDMA Optimality |
CISS
2007
IEEE
13 years 8 months ago
2007
IEEE
Abstract-Joint subcarrier, power and rate allocation in orthogonal frequency division multiple access (OFDMA) scheduling is investigated for both downlink and uplink wireless trans...
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
Abstract— A multicell system which supports multiple antennas and OFDMA modulation/access is considered in this paper as conforming IEEE 802.16-2005 standard. Focusing on the upl...
VTC
2008
IEEE
13 years 11 months ago
2008
IEEE
— In this paper, we study the joint design of uplink and downlink resources in OFDMA-based systems. We first analyze the interactions between uplink and downlink, due essentiall...
ETT
2000
13 years 4 months ago
2000
We analyze the effects of Doppler spread in mobile channels on Orthogonal Frequency Division Multiplex (OFDM) systems. This is important, since channel variations during one OFDM s...
INFOCOM
2012
IEEE
11 years 7 months ago
2012
IEEE
—Recent advances in cognitive radio (CR) technology have brought about a number of wireless standards that support opportunistic access to available white-space spectrum. Address...