have good estimation accuracy

It can be concluded that RBIR and EESM have good estimation accuracy, while mean value method only adapts to flat slow fading channel. Where can I get nike running shoes?Besides, the fixed threshold and outer loop method for MCS selection rule are showed. Simulation comparison of three kinds of fixed threshold method in flat slow fading channel is presented. Outer loop can make up for the deficiency of fixed threshold method, such as sensitivity to channel estimation and prediction inaccuracy. Thus the combination of fixed and outer loop method is the best choice.I want a pair of cheap nike shoes. After that, two kinds of adaptive scheme based on HARQ technology are analyzed by simulation. The result shows that these adaptive schemes bring performance gain.Chapter 4 analyzes AMC-HARQ system in the two conditions of retransmission-combined and non-combined with the assumption of retransmission channel unchanged or FSMC model. The correlation of noise in combined data and pre-combined data is also considered according to channel-combined BLER rule and maximum throughput rate rule. We deduce the expression of throughput rate and FER, get the optimal threshold for AMC-HARQ system and verify them by simulation.Chapter 5 studies channel prediction in AMC system. I would like to take this chi hair straightener.The performance and application of four kinds of channel predictor for flat fading channel are compared by simulation. And four existing algorithms for OFDM channel prediction are elaborated. Based on ESPRIT algorithm, IDFT+ESPRIT algorithm is proposed, which can reduce complexity without causing performance loss. In the end, three kinds of adaptive prediction algorithm as follows are analyzed by simulation: LMS, RLS, adaptive ESPRIT.
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