Capacity planning for group-mobility users in OFDMA wireless networks
EURASIP Journal on Wireless Communications and Networking
Bit and power allocation in constrained multicarrier systems: the single-user case
EURASIP Journal on Advances in Signal Processing
CDIT-based constrained resource allocation for mobile WiMAX systems
EURASIP Journal on Wireless Communications and Networking - Special issue on fairness in radio resource management for wireless networks
Admission control threshold in cellular relay networks with power adjustment
EURASIP Journal on Wireless Communications and Networking - Special issue on OFDMA architectures, protocols, and applications
Optimal resource allocation in the OFDMA downlink with imperfect channel knowledge
IEEE Transactions on Communications
Design and analysis of delay-sensitive cross-layer OFDMA systems with outdated CSIT
IEEE Transactions on Wireless Communications
Cross-layer design for single-cell OFDMA systems with heterogeneous QoS and partial CSIT
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 1
Dynamic allocation of subcarriers and transmit powers in an OFDMA cellular network
IEEE Transactions on Information Theory
Efficient power allocation for OFDM with imperfect channel state information
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Downlink mobile OFDMA resource allocation with minimum user rate requests
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Resource allocation for OFDMA systems with guaranteed outage probabilities
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Constrained ergodic rates maximization for mobile WiMAX with statistical channel information
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Downlink OFDMA resource allocation under partial channel state information
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Downlink resource allocation for OFDMA-based multiservice networks with imperfect CSI
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
OFDMA downlink resource allocation via ARQ feedback
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Robust semidefinite relaxations for a quadratic OFDMA resource allocation scheme
Computers and Operations Research
A performance comparative study on the implementation methods for OFDMA cross-layer optimization
Future Generation Computer Systems
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Power loading algorithms improve the data rates of orthogonal frequency division multiplexing (OFDM) systems. However, they require the transmitter to have perfect channel state information, which is impossible in most wireless systems. We investigate the effects of imperfect (and thus partial) channel feedback on the throughput of OFDM systems. Two channel uncertainty models are studied: 1) the ergodic model, where average rate is the figure of merit and 2) the quasi-static model, where outage rate is relevant. Rate-power allocation algorithms are developed. The throughput achieved by these algorithms and the effects of channel multipath are investigated analytically and with simulations.