摘要
综合无线传感器网络节点电路能耗和信道传输能耗,建立了ARQ协议传输每比特负载数据的等效能耗数学模型和以链路最低能耗为有效性优化目标,通过MATLAB仿真计算,分析研究了高斯白噪声信道条件下,ARQ协议的能耗与传输帧长和误帧率的关系以及一定范围内电路参数对能耗性能的影响,讨论了最低能耗状态下的最佳帧长和最佳误帧率。
In this paper,an equivalent energy consumption model of per data bit is founded and the optimum conditions of the lowest energy, consumption is proposed from both net circuits and transmission channel in ARQ protocols for wireless sensor networks.By means of MATLAB imitation,the impact of frame error ratio and frame length and circuits parameters on energy consumption of ARQ protocols is analyzed under AWGN.The optimum frame error ratio and the optimum frame length are also discussed on lowest energy consumption.
出处
《计算机工程与应用》
CSCD
北大核心
2008年第9期13-15,23,共4页
Computer Engineering and Applications
基金
国家自然科学基金(the National Natural Science Foundation of China under Grant No.60273009)
关键词
无线传感器网络
能量有效性
误帧率
最佳帧长
ARQ协议
wireless sensor networks
energy efficiency
frame error ratio
optimal frame lenglh
ARQ protocols
