Practical approaches to adaptive resource allocation in OFDM systems
EURASIP Journal on Wireless Communications and Networking - Multicarrier Systems
Application-driven cross-layer design of multiuser H.264 video transmission over wireless networks
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Adaptive subcarrier allocation schemes for wireless OFDMA systems in WiMAX networks
IEEE Journal on Selected Areas in Communications - Special issue on broadband access networks: Architectures and protocols
An extension to the ordered subcarrier selection algorithm (OSSA)
IEEE Transactions on Wireless Communications
User resource structure design with enhanced diversity for OFDMA in time-varying channels
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
A fast power allocation strategy for OFDM systems
IEEE Transactions on Communications
Dynamic resource allocation in adaptive wireless OFDMA systems
Wireless Communications & Mobile Computing
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The problem of low complexity sub-optimal power and subcarrier allocation for OFDMA systems is addressed in the paper. We propose a heuristic non-iterative method that is an extension of the ordered subcarrier selection algorithm recently proposed for a single user case to the OFDMA systems. The suggested method improves the average BER-performance of the system and it also provides fairness between the users in terms of the bit rates. Both the theoretical analysis and simulation results confirm efficiency of the proposed technique. Based on the proven lemma about inversion of power gains, we strengthen the suggested method by low complexity power loading that consists in equalization of the received signal-to-noise ratios of each user