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A new model of time division duplex long term evolution (TD-LTE) system considering crossed time slot (CTS) interference is proposed in this paper because CTS interference may greatly affect system performance. An improved quantum evolutionary algorithm (QEA) is put forward to solve the model efficiently. The proposed QEA enhances the global search capability and has a good convergence due to the...
The conventional resource allocation method is so-called two-step method in OFDM system. The two-step method can reduce the computational complexity. However, it's solution accuracy is not very good. This paper proposes an improved two-step method. This method combines evolutionary algorithm with simulated annealing thought, and can take into account the sub-carrier distribution and power distribution...
This paper presents Customer Satisfaction (CS) based resource allocation strategy in orthogonal frequency-division multiplexing (OFDM) wireless system with multimedia traffic. The risk aversion utility functions are analyzed, based on which, the CS utility and the CS resource allocation strategy are proposed. Compared with the Proportional Fairness (PF) utility, the CS utility enables the system to...
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