Principles of mobile communication (2nd ed.)
Principles of mobile communication (2nd ed.)
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Resource Allocation in Multiuser Multicarrier Wireless Systems
Resource Allocation in Multiuser Multicarrier Wireless Systems
Adaptive MIMO-OFDM based on partial channel state information
IEEE Transactions on Signal Processing
Computationally efficient bandwidth allocation and power control for OFDMA
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Cross-layer optimization for OFDM wireless networks-part II: algorithm development
IEEE Transactions on Wireless Communications
Rate-maximizing power allocation in OFDM based on partial channel knowledge
IEEE Transactions on Wireless Communications
Adaptive resource allocation in multiuser OFDM systems with proportional rate constraints
IEEE Transactions on Wireless Communications
Optimal Downlink OFDMA Resource Allocation with Linear Complexity to Maximize Ergodic Rates
IEEE Transactions on Wireless Communications
Multiuser OFDM with adaptive subcarrier, bit, and power allocation
IEEE Journal on Selected Areas in Communications
Predictive resource allocation for multicast OFDM systems
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Fairness-aware resource allocation in downlink OFDMA systems with partial feedback CSI
APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
Resource allocation for OFDMA systems with guaranteed outage probabilities
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
TELE-INFO'11/MINO'11/SIP'11 Proceedings of the 10th WSEAS international conference on Telecommunications and informatics and microelectronics, nanoelectronics, optoelectronics, and WSEAS international conference on Signal processing
Computer Networks: The International Journal of Computer and Telecommunications Networking
Dynamic resource allocation in adaptive wireless OFDMA systems
Wireless Communications & Mobile Computing
Efficient resource allocation algorithm for OFDMA systems with delay constraint
Computer Communications
Journal of Electrical and Computer Engineering - Special issue on Resource Allocation in Communications and Computing
Ergodic Sum Rate Maximization for Underlay Spectrum Sharing with Heterogeneous Traffic
Wireless Personal Communications: An International Journal
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Previous research efforts on OFDMA resource allocation have typically assumed the availability of perfect channel state information (CSI). Unfortunately, this is unrealistic, primarily due to channel estimation errors, and more importantly, channel feedback delay. In this paper, we develop optimal resource allocation algorithms for the OFDMA downlink assuming the availability of only partial (imperfect) CSI. We consider both continuous and discrete ergodic weighted sum rate maximization subject to total power constraints, and average bit error rate constraints for the discrete rate case. We approach these problems using a dual optimization framework, allowing us to solve these problems with O(MK) complexity per symbol for an OFDMA system with K used subcarriers and M active users, while achieving relative optimality gaps of less than 10-5 for continuous rates and less than 10-3 for discrete rates in simulations based on realistic parameters.