关键词: 移动群体感知, 移动设备, 探测时间间隔, 能量使用效率, 有效探测总数

Abstract: There is a trade-off relationship between the number of effective detections and the energy efficiency of mobile devices in the mobile group awareness network, in view of the characteristics of mobile devices in mobile group awareness, this paper presents a model of energy efficient device detection in mobile group awareness. Firstly, the detection process based on the Poisson distribution model is modeled to get the ineffective detection probability of mobile devices. Through the experiments to verify the model, the results show that the model is correct and reasonable.Then the relations of the total number of valid detections and probe interval are achieved. Finally,based on the model analysis, the equilibrium points of energy consumption and detection effectiveness in different situations are obtained, the mobile device owners can set the detection interval T according to their environment, so as to save the energy of mobile devices.

Key words: mobile group awareness, mobile devices, probe interval, energy use efficiency, number of effective detections