10-07-2012, 04:49 PM
BODY AREA NETWORKS
BODY AREA NETWORKS.doc (Size: 1.3 MB / Downloads: 42)
ABSTRACT:
In recent years, wireless communications have gained greater relevance. They presently play an important role in our lifestyle and quality of home and work life. Ubiquity allows a person to seamlessly connect with anybody who is connected in the world. The expanded uses of wireless technologies have increased and new applications have been developed. Wireless networks have been classified according to their level of coverage. Consequently, there are wide area networks, metropolitan area networks, local area networks and personal area networks. In personal area networks, there is a lot of interest in body area networks, which are communication networks that are within, near and around a person.
INTRODUCTION:
Body Area Network is formally defined by IEEE 802.15 as, "a communication standard optimized for low power devices and operation on, in or around the human body (but not limited to humans) to serve a variety of applications including medical, consumer electronics / personal entertainment and other" . In more common terms, a Body Area Network is a system of devices in close proximity to a person’s body that cooperate for the
benefit of the user.
BAN CHARACTERISTICS:
Transmissions of BANs have very specific characteristics
• Coverage is confined to distances of no more than 2 or 3 meters
• The power transmission levels are very low. Low power contributes to long battery life and reduces the levels of interference with other technologies. Equally important, operating with low power levels reduces health risks.
CLASSIFICATIONS OF BODY AREA NETWORK:
IMPLANTABLE:
Implantable BANs have sensors that are located deeper in the body, in areas such as the heart, brain and spinal cord. Implantable BANs meld active stimulation and physiological monitoring, and represent a highly desirable proposition for some chronic conditions that until now have only been treatable using drugs. Examples of such treatments include deep-brain stimulation for Parkinson’s disease, spinal stimulators for chronic pain and bladder stimulators for urinary incontinence.
APPLICATIONS OF BAN:
Medical Applications
BANs can provide interfaces for diagnostics, for remote monitoring of human physiological data, for administration of drugs in hospitals and as an aid to rehabilitation
In the future it will be possible to monitor patients continuously and give the necessary
medication whether they are at home, in a hospital or elsewhere. Patients will no longer need
to be connected to large machines in order
to be monitored.