Abstract This paper first analyzes the principle of adaptive modulation, spectral efficiency it up to standards, in the constant power constraint condition to receive a letter under the noise Optimization to select different modulation than the order of. Then the introduction of time-varying multi-path channel model is given by simulation of adaptive channel conditions in this performance, and analyze the The channel estimation error on their performance. Key words adaptive modulation, modulation, time-varying channel

自适应MQAM调制性能分析.pdf

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