A significant increase in real world event monitoring capability with wireless sensor networks will lead to a further evolution of ubiquitous computing. This paper describes this evolution, leading to humans being connected to the real world via computers without awareness. We address an ad hoc communication paradigm, a data-centric approach, and a middleware’s task, to understand the ultimate ...

With the rise in population and increase in older people Wireless Body Sensor Networks can prove to be beneficial in providing medical service to people who require continuous monitoring and care. Development in technologies for Wireless Communication has led to sensor nodes which can be worn over the body, implanted and embedded over the body. These are small sized devices which can perform pr...

Applications of body sensor networks (BSN) in health-care are growing rapidly. The number of implanted sensors used to accurately prognose and diagnose the medicalconditions are increasing. The implanted medical devices (IMD), for example pace-makers are improvised for delivering patientcentric therapies. These IMD require continuous pathological information about the disease from the implanted...

A wireless sensor network (WSN) consists of small, multifunctional, low cost and low power sensor nodes. In WSNs, the routing protocol has limited battery power and bandwidth constraints and yet they have to facilitate efficient working as well as prolonged lifetime of these networks. On the basis of network structure routing techniques can be classified as data-centric, hierarchical and locati...

Electromagnetic nano-communication has increasing attention in recent years. Several developments have been achieved the fabrication, communication and management of various nano-network devices serving potential applications ranging from software-defined metamaterials, wireless robotic materials body-centric communication. Such need uplink downlink between deployed external macro-world or Inte...

Owing to the mobility of a wearable antenna and unpredictable body-centric communications environment, dual-polarization antennas are essential for both energy harvesting. This paper presents dual-polarized four-port textile antenna/rectenna simultaneous wireless information power transfer (SWIPT) applications. The proposed utilizes dual ports off-body communication harvesting from horizontal v...

To recognize a context of a user, it is important to know a physical condition of the user and a status of his/her surrounding environment. For example, to maintain a healthcare condition of an elderly person, his/her care workers require monitoring not only his/her physiological conditions but also physical statuses of his/her surroundings, such as room temperatures. However, most approaches t...

This paper presents an ultra-low-power single-chip sensor-node VLSI for wireless-sensor-network applications. A communication centric design approach has been introduced to reduce the power consumption of the RF circuits and the entire sensor network system, through a vertical cooperative design among circuits, architecture, and communication protocols. The sensor-node LSI features a synchronou...