Optimal resource allocation in the OFDMA downlink with imperfect channel knowledge
IEEE Transactions on Communications
Adaptive resource allocation in multiuser OFDM systems with proportional rate constraints
IEEE Transactions on Wireless Communications
Multiuser OFDM with adaptive subcarrier, bit, and power allocation
IEEE Journal on Selected Areas in Communications
Transmit power adaptation for multiuser OFDM systems
IEEE Journal on Selected Areas in Communications
Low complexity resource allocation with opportunistic feedback over downlink OFDMA networks
IEEE Journal on Selected Areas in Communications
Hi-index | 0.01 |
As the number of users increases, the amount of required feedback Channel State Information (CSI) at the base station becomes huge and prohibits the feasibility of conventional adaptive resource allocation algorithms in fairness-aware downlink OFDMA systems. Thus, this paper presents a novel mechanism making use of multi-user diversity to greatly reduce the feedback CSI while maintaining almost the same system performance. Some simulation results are given to verify this partial feedback mechanism.