A Survey of Wearable Devices and Challenges

Abstract

As smartphone penetration saturates, we are witnessing a new trend in personal mobile devices-wearable mobile devices or simply wearables as it is often called. Wearables come in many different forms and flavors targeting different accessories and clothing that people wear. Although small in size, they are often expected to continuously sense, collect, and upload various physiological data to improve quality of life. These requirements put significant demand on improving communication security and reducing power consumption of the system, fueling new research in these areas. In this paper, we first provide a comprehensive survey and classification of commercially available wearables and research prototypes. We then examine the communication security issues facing the popular wearables followed by a survey of solutions studied in the literature. We also categorize and explain the techniques for improving the power efficiency of wearables. Next, we survey the research literature in wearable computing. We conclude with future directions in wearable market and research.

Modeling Physiological Conditions for Proactive Tourist Recommendations

“…Wearable devices can support humans with the overload of information in communication and computation in appropriate contexts [6]. A survey of commercially available wearables, research prototypes, and their classification was done by Seneviratne et al [20], and Godfrey et al [11] provide an A-Z guide of the key terms required for understanding current wearable technology developments in health care.…”

EnTrans: Leveraging Kinetic Energy Harvesting Signal for Transportation Mode Detection

“…Thanks to the recent advancements in embedded technology, sensor-rich mobile and wearable devices have become an ubiquitous part of our life and enable many useful applications that improve our life quality [1]. Detecting and profiling the daily transportation mode of an individual is one kind of applications that aims to monitor our daily mobility patterns.…”

“…To the best of our knowledge, this is the first comprehensive study in detecting transportation modes using the harvested voltage from the KEH devices. The main contributions of this paper are as follows: (1) We propose a novel transportation detection system, EnTrans, which detects the transportation mode from the voltage signal generated by the KEH during the traveling of the subject. (2) We develop a sparse representation based framework to classify different transportation modalities.…”

Filtering antennas for energy harvesting in wearable systems

“…Wearable communication and sensing have many applications, such as health monitoring, sports, and emergency rescue services. Wearable systems require information on sensed or measured biological parameters to be delivered reliably and quickly over a wireless link for the computing and analysis purposes . For such applications, it is undesirable to frequently recharge the wearable devices by plugging the devices into power supplies.…”

“…Wearable systems require information on sensed or measured biological parameters to be delivered reliably and quickly over a wireless link for the computing and analysis purposes. [1][2][3][4] For such applications, it is undesirable to frequently recharge the wearable devices by plugging the devices into power supplies. On the other hand, wearable energy harvesting system offers a more flexible and convenient power supply to the wireless devices and has received many interests from both academic and industrial communities.…”