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随着高速无线数据通信的发展,自适应调制技术逐渐成为业界研究的热点之一。研究了MQAM自适应调制技术,分析了自适应调整区间的划分方案,设计了基于Turbo乘积码的自适应编码调制方法,提高了系统的频谱利用率。
With the development of high-speed wireless data communications, adaptive modulation technology has gradually become one of the hot topics in the industry. The MQAM adaptive modulation technique is studied. The partition scheme of adaptive adjustment interval is analyzed. An adaptive coding and modulation scheme based on Turbo product code is designed to improve the system spectrum utilization.