An Efficient Sub-optimal Subcarrier Allocation Algorithm for Multiuser OFDM System
ICWMC '09 Proceedings of the 2009 Fifth International Conference on Wireless and Mobile Communications
Optimal and near-optimal resource allocation algorithms for OFDMA networks
IEEE Transactions on Wireless Communications
Computer Networks: The International Journal of Computer and Telecommunications Networking
Computationally efficient bandwidth allocation and power control for OFDMA
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Broadband wireless access solutions based on OFDM access in IEEE 802.16
IEEE Communications Magazine
IEEE Communications Magazine
Multiuser OFDM with adaptive subcarrier, bit, and power allocation
IEEE Journal on Selected Areas in Communications
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This paper presents a performance analysis of dynamic channel allocation (DCA) based on the greedy approach (GA) for orthogonal frequency-division multiple access downlink systems over Rayleigh fading channels. The GA-based DCA achieves its performance improvement using multiuser diversity. We analyze the statistics of the number of allocable users that represents the multiuser diversity order at each allocation process. The derived statistics are then used to analyze the performance of GA-based DCA. The analysis results show that the number of subcarriers allocated to each user must be equal to achieve the maximum system performance based on outage probability and data throughput. Copyright © 2011 John Wiley & Sons, Ltd. (The greedy approach-based dynamic channel allocation achieves its performance improvement using multiuser diversity. We analyze the statistics of the number of allocable users that represents the multiuser diversity order at each allocation process. The derived statistics are then used to analyze the performance of the greedy approach-based dynamic channel allocation.)