Research And Measurement On The Interference Of The Wireless Heterogeneous Networks Based On Wehealth

With the development of information technology, the Internet of Things gradually began to enter the medical field, and play a very important role. As an important part of the current Medical Internet of Things, healthcare technology has a very rapid development speed. The concept of the Wireless Electronic Health (WeHealth) is proposed at this context. Unlike traditional health care system, WeHealth system not only completes the overall architecture of Medical Internet of Things and is more concerned with the application of the wireless communication technology which makes access and transmission of medical data faster and more convenient.This paper first describes the current medical matter networking and its overall structure, characteristics and key technologies, then introduces the health of Things in wireless heterogeneous network interference problems. After that according to the main structure, application mode of WeHealth, this paper analyzes the possible wireless interference sources under different scenarios. With the analysis of the Zigbee which is the main wireless communication technology of WeHealth and analysis of heterogeneous network interference, this paper simulates the interference on Zigbee by the possible source and determines that Wi-Fi is the main interference source by analyzing. Based on the previous analysis, this paper gives the real measurement of the interference between the Zigbee and Wi-Fi module in WeHealth system, and gets the characteristics of the interference between them. At last, based on the analysis and the measurement, this paper proposes an interference avoidance strategy based on the WeHealth heterogeneous network. This strategy effectively avoids the interference of the major interference sources, Wi-Fi, and gives strategy assessment.WeHealth is an emerging concept and applications mode of Medical Internet of Things. The research and the measurement of interference in the wireless heterogeneous network can promote the improvement of quality of wireless communication in the WeHealth system. In-depth study of the interference problem is very important for healthcare intelligent process and the improvement of the quality of wireless communication.