Big program code dissemination scheme for emergency software-define wireless sensor networks

• DOI: 10.1007/s12083-017-0565-5
• Publication Date: 2017-05-22T22:22:36Z
• Authors: Xiao Liu; Gaoxiang Li; Shigeng Zhang; Anfeng Liu
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

Program codes as one of big data should be disseminated to all sensor nodes in a wireless software-define smart network (WSDSN) quickly. Due to the limited energy of sensor nodes, sensor nodes adopt asynchronous duty-cycle model to save energy. But neighbor nodes with sleep status can’t receive program codes, resulting in longer transmission delay for spreading program codes. In this paper, an adjustable duty cycle based fast disseminate (ADCFD) scheme is proposed for minimum-transmission broadcast (MTB) in a smart wireless software-define network. In an ADCFD scheme, the duty cycle of nodes are adjusted to receive program codes timely. Thus, the transmission times and emergency transmission delay are reduced. The theoretical analysis and experimental results show that compare to previous broadcast scheme, the number of transmission in an ADCFD scheme is reduced by 44.776%–118.519%, the delay from disseminating program codes is reduced by 17.895%- 107.527%, while retaining network lifetime.