基于最小能量法的无线传感器网络节点能量有效性研究

摘要

The energy consumption of an OOK transmitter was analyzed .A simple and energy efficient source coded ME-Coding On/Off Keying modulation scheme for wireless application was presented .The SNR performance of ME-Coding OOK was better than other modulation methods in a bit low rate .Howev-er, when the circuit energy consumption is taken into account , the simulation results demonstrate that the total energy consumption of the classical system model can not be reduced .It proposes a new system model which matches the ME-coding OOK communication to get the total energy optimization .%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。