A data fusion privacy protection strategy with low energy consumption based on time slot allocation and relay in WBAN

Abstract

Wireless body area network (WBAN) can collect and analyze human health signs data of various modes in real time by virtue of low-energy consumption high-precision sensing technology, and it needs to protect health sensitive data related to personal privacy in the process of data transmission. In order to solve the important problem of reliable data transmission in wireless body area network, a new strategy is proposed in this paper. From the two levels of single-hop communication and two-hop communication, the channel characteristics and node data rate in WBAN are fully considered. The reliable data transmission in wireless body area network is realized by using time slot allocation and relay strategy. The introduction of TDMA mechanism of dynamic time slot allocation improves the energy efficiency of strategy and avoids the energy consumption caused by competition, while dynamic time slot allocation satisfies the change of node flow. Time slot allocation strategy based on channel condition and data traffic, exist some nodes in the practical use of the status of the data transmission reliability not guaranteed, we use the relay for this strategy to improve its, meet the requirements of the reliability of data transmission in the network, to bring the additional energy consumption, and strategy information dynamic relay selection depend on the channel information and energy, so that improve the energy efficiency, its energy consumption is reduced. Simulation results show that our transmission strategy can significantly improve the transmission success rate and reduce packet loss, and can adjust the channel changes to improve the reliability of data transmission.