{'fraction_non_alphanumeric': 0.011504424778761062, 'fraction_numerical': 0.0017699115044247787, 'mean_word_length': 5.813253012048193, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
An Overview of Network Architectures and Technology for Wearable Sensor-based Health Monitoring Systems

As the population ageing is one of the most significant trends of the 21st century, the traditional methods for monitoring and diagnosis of elderly people are no longer sufficient for providing them with a satisfactory quality of life. One of the promising approaches that helps towards addressing such challenges is the employment of communication and information-based systems, allowing automated remote health monitoring and data analysis. The evolutionary transition to digital healthcare requires the definition of new concepts, architectural models and functionalities, subject of study by the scientific community and technology standardization bodies. In the present paper, we overview a wide range of architectures and technological solutions that were recently proposed for the needs of health monitoring, with focus on systems that are based on communication connectivity. We provide a comprehensive analysis and some critical comments on the potential technological shortcomings and challenges of these solutions.