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| A Resource Allocation Algorithm Based on Proportional Fairness and Refined Bandwidth Allocation for Multi-radio Systems |
| Pan Su①② Cao Pao-pao① Liu Sheng-mei① |
①(College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China)
②(National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China) |
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Abstract A joint resource allocation algorithm is proposed to solve the problem of the proportional fairness and the system efficiency in multi-radio systems based on OFDMA (Orthogonal Frequency Division Multiple Access). The algorithm optimizes the system throughput under the fairness constraint, and considers that the allocated bandwidth should be integer times of the subchannel bandwidth. The bandwidth allocated to each terminal is adjusted according to this consideration. The performance of the proposed algorithm is evaluated by simulations in terms of the system throughput and the fairness.
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Received: 13 March 2014
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Corresponding Authors:
Pan Su
E-mail: supan@njupt.edu.cn
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2015, Vol. 37 
