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分析了传统无线网络系统模型中的能耗.利用最小能量编码(ME-Coding)作为信源编码的On/Off Keying(OOK)调制方法,对节点间传输的信号序列进行了优化,结果提高了信噪比,降低了误码率.但实验模拟仿真结果表明,当将链路能耗考虑进总体能量消耗中后,若使用传统系统模型,其总能耗并未得到优化.因此提出并验证了更加适合最小能量法的系统模型,以便降低系统能耗和延长传感器网络节点的寿命.
The energy consumption in the traditional wireless network system model is analyzed.Using ME-Coding as the On / Off Keying (OOK) modulation method of source coding, the signal sequences transmitted between nodes are optimized, and the result is improved Signal to noise ratio and lower bit error rate.But the experimental simulation results show that the total energy consumption of the traditional system model is not optimized when considering the link energy consumption into the overall energy consumption.Therefore, The system model is more suitable for the minimum energy method in order to reduce system energy consumption and extend the life of sensor network nodes.