Efficient and fair resource allocation in downlink OFDMA systems

被引：0

作者：

Song, Zheng-Yu ^{[1
]}

Hou, Shu-Juan ^{[1
]}

Wu, Si-Liang ^{[1
]}

机构：

[1] School of Information and Electronics, Beijing Institute of Technology, Beijing

来源：

Journal of Beijing Institute of Technology (English Edition) | 2015年 / 24卷 / 02期

关键词：

Downlink; Efficiency; Fairness; Orthogonal frequency division multiple access (OFDMA); Resource allocation;

D O I：

10.15918/j.jbit1004-0579.201524.0213

中图分类号：

学科分类号：

摘要：

A resource allocation problem considering both efficiency and fairness in orthogonal frequency division multiple access (OFDMA) systems is studied. According to the optimality conditions, a downlink resource allocation algorithm consisting of subcarrier assignment and power allocation is proposed. By adjusting the tradeoff coefficient, the proposed algorithm can achieve different levels of compromise between efficiency and fairness. The well-known classic resource allocation policies such as sum-rate maximization algorithm, proportional fairness algorithm and max-min algorithm are all special cases of the proposed algorithm. Simulation results show that the compromise between efficiency and fairness can be continuously adjusted according to system requirements. ©, 2015, Beijing Institute of Technology. All right reserved.

引用

页码：222 / 226

页数：4

共 15 条

[1]

Jang J., Lee K.B., Transmit power adaptation for multiuser OFDM systems, IEEE Journal on Selected Areas in Communications, 21, 2, pp. 171-178, (2003)

[2]

Rhee W., Cioffi J.M., Increasing in capacity of multiuser OFDM system using dynamic subchannel allocation, Proceedings of IEEE 51st Vehicular Technology Conference, (2000)

[3]

Shen Z., Andrews J.G., Evans B.L., Adaptive resource allocation in multiuser OFDM systems with proportional rate constraints, IEEE Transactions on Wireless Communications, 4, 6, pp. 2726-2737, (2005)

[4]

Kim H., Han Y., A proportional fair scheduling for multicarrier transmission systems, IEEE Communications Letters, 9, 3, pp. 210-212, (2005)

[5]

Nguyen T.D., Han Y., A proportional fairness algorithm with QoS provision in downlink OFDMA systems, IEEE Communications Letters, 10, 11, pp. 760-762, (2006)

[6]

Fraimis I.G., Kotsopoulos S.A., QoS-based proportional fair allocation algorithm for OFDMA wireless cellular systems, IEEE Communications Letters, 15, 10, pp. 1091-1093, (2011)

[7]

Song G.C., Li Y.G., Cross-layer optimization for OFDM wireless networks-part I: theoretical framework, IEEE Transactions on Wireless Communications, 4, 2, pp. 614-624, (2005)

[8]

Song G.C., Li Y.G., Cross-layer optimization for OFDM wireless networks-part II: algorithm development, IEEE Transactions on Wireless Communications, 4, 2, pp. 625-634, (2005)

[9]

Ma Y., Kim D.I., Rate-maximization scheduling schemes for uplink OFDMA, IEEE Transactions on Wireless Communications, 8, 6, pp. 3193-3205, (2009)

[10]

Leith A., Alouini M.S., Kim D.I., Et al., Flexible proportional-rate scheduling for OFDMA system, IEEE Transactions on Mobile Computing, 12, 10, pp. 1907-1919, (2013)

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