嵌入式网络通讯接口数据传输功耗预测仿真

Embedded Network Communication Interface Data Transmission Power Consumption Simulation

嵌入式网络通信接口数据传输功耗预测对提高数据传输的质量,降低信息传输的功耗具有重要意义,当前嵌入式网络通讯接口数据传输功耗预测由于不能准确分析数据传输中数据大小、传输数据带宽以及数据中噪声含量与数据传输功耗之间的关系,导致传输功耗预测的准确度不高。为此提出一种基于马尔可夫模型的嵌入式网络通讯接口数据传输功耗预测方法,通过计算在数据传输过程中路径衰落效应、阴影效应以及多径衰落效应下数据信噪比,实现数据发送功率,路径衰落指数以及信噪比之间关系的描述,从而建立数据传输信道模型,并利用马尔可夫模型,通过建立嵌入式网络通讯接口数据传输过程中一次状态转移矩阵,利用数据传输过程中状态转移概率矩阵和初始状态概率,实现数据传输功耗预测,实验结果表明,所提方法能够准确描述数据传输中数据大小、传输数据带宽以及数据中噪声含量与数据传输功耗之间的关系,提高了嵌入式网络通讯接口数据传输功耗预测的准确性。

A power consumption prediction method of data transmission in embedded network communication interface based on Markov model was proposed. The relationship among the data sending power, the path loss exponent and the signal - to - noise ratio was described by calculating the signal - to - noise ratio under the multipath fading effect, the path decline effect, the shadow effect during data transmission. Thus, the data transmission channel mod- el was built. Through establishing the primary state transition matrix in data transmission of embedded network communication interface and using the state transition probability matrix and the initial state probability during data transmission, Markov model was used to predict the data transmission power consumption. Simulation results show that the proposed method can accurately describe the relationship among the data size in data transmission, the bandwidth of data transmission, the data noise content in data and power consumption of data transmission. Meanwhile, it improves the accuracy of predicting the power consumption of data transmission in embedded network communication interface.