Communications for Wearable Devices

Wearable devices are transforming computing and the human-computer interaction and they are a primary means for motion recognition of reflexive systems. We review basic wearable deployments and their open wireless communications. An algorithm that uses accelerometer data to provide a control and communication signal is described. Challenges in the further deployment of wearable device in the field of body area network and biometric verification are discussed. Introduction Wearable wireless communication system is exciting new frontier techniques and it is adding another layer to human-machine interaction [1][2][3][4][5]. Wireless communication is necessary to make it possible for wearable devices to transmit data to proximate devices and this brings up many problems of transmission and software control 6][7][8]. There are many devices operating in the localized region or within human body contact, such as the smart phone watch, wearable computing devices, RFID and health care monitoring devices [9][10][11], and the RF band is shared with mobile/ cellphones, WLAN, Personal area networks, satellite communications and many other applications [12]-[21]. Data transmission must be secure since wearable devices transmit vital information and it is data that needs to be private and for this both access control and encryption must be employed [22]. Questions related to security over the network must also be addressed and future solutions that include quantum algorithms must be researched [23]-[30]. Several wireless communication systems deal with the specific issues of body centric communication using a device like a radio terminal placed on the skin surface of human body. The communication system aims at short-range communication likepersonal area networks (PAN) and body area network (BAN), using human body as a transmission conduit. The objective of this paper is to explore the usage of wearable devices for activity recognition by using wireless communication channel where the transmission of signal through body area network uses half duplex communication with the help of a wearable device wireless communication. The activity recognition shall be explained by using a single wearable device accelerometer sensor data to understand wireless communication mechanism of a single wearable device. The signal transmission network of a wearable device via human body or any reflexive system to deal with a propagating signal will also be examined.