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OFDM A系统中反馈信息的量化是自适应资源调度实用化的关键步骤。文中研究有关量化算法,在分析反馈信息在资源调度中的作用基础上,提出了能反映信道增益变化的2 b it量化方法。仿真结果显示,提出算法基本可以满足系统调度算法对反馈信息的要求。
The quantization of feedback information in OFDM A system is a key step in the practical application of resource scheduling. Based on the analysis of the role of feedback information in resource scheduling, this paper presents a quantization algorithm that can reflect the change of channel gain. The simulation results show that the proposed algorithm can basically meet the requirements of the system scheduling algorithm for the feedback information.