Resource Allocation Optimization for Orthogonal Frequency Division Multiplexing Access using Modified Utility Function
Article Sidebar
Main Article Content
In this paper, we propose an optimal method for resource allocation in OFDMA (Orthogonal Frequency Division Multiplexing Access) system. The utility function is used to balance the efficiency and fairness of wireless resource allocation. We analyze the mathematical property of resource allocation by modified utility function. We develop optimal algorithm for dynamic subcarrier assignment and adaptive power allocation based on modified utility function, and demonstrate the convergence properties of optimization. Simulation results show that the proposed method provides the effective tradeoff between fairness and efficiency in radio resource allocation.
Downloads
References
M. Katoozian,(2009). Utility-Based Adaptive Radio Resource Allocation in OFDM Wireless Networks with Traffic Prioritization, IEEE Trans. Wireless Commu., 8(1), 23-29.
Ian C. Wong, L. Evans,(2009). Optimal resource allocation in the OFDMA downlink with imperfect channel knowledge, IEEE Trans. on Commu., 57(1), 232-241.
Guocong Song, Ye Li,(2005). Cross-Layer Optimization for OFDMA Wireless Networks, IEEE Trans. on Wireless Commu., 4(2), 614-624.
F. Khelifa, A. Samet. (2011). A new approach for sub-channels assignment in downlink fourth generation mobile systems, Journal of Computer Science, 7(9): 1368-137.
S.Adibi, A.Mobasher, & T.Tofigh (2010). Fourth generation wireless networks. New York: Information science reference(an imprint of IGI global,(chapter 29).
Martin D., Werner M., & Afif O., (2009). Radio technologies and concepts for IMT Advanced. John Wiley and Sons, Ltd. (chapter 9).
Lei Xu, Ya-ping Li, Qian-mu Li, Yu-wang Yang, Zhen min Tang, Xiao-fei Zang,(2015). Proportional fair resource allocation based on hybrid ant colony optimization for slow adaptive OFDMA system, Information Sciences, 293, 1-10.
J.J.Escudero-Garzas, B.bevillers, A.Garcia-Armaola, (2014). Fair-adaptive good put-based resource allocation in OFDMA downlink with ARQ, IEEE Trans. Veh. Technol., 63(3), 1178-1192.
J.Joung, S.M.Sum, (2012), power efficient resource allocation for downlink OFDMA relay cellular networks, IEEE Trans. Signal Process, 60(5), 2447-2459.
Alireza Sani, Mahmood Mohassel Fegjji, Aliazam Abbasfar, (2014). Discrete bit loading and power allocation for OFDMA downlink with minimum rate guarantee for users, int.J.Electron.Commun.(AEÜ), 68, 602-610.
This work is licensed under a Creative Commons Attribution 4.0 International License.
All articles published in our journal are licensed under CC-BY 4.0, which permits authors to retain copyright of their work. This license allows for unrestricted use, sharing, and reproduction of the articles, provided that proper credit is given to the original authors and the source.