Antonio Perez

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**Body area network!**

A body area network (BAN), also referred to as a wireless body area network (WBAN) or a body sensor network (BSN) or a medical body area network (MBAN), is a wireless network of wearable computing devices.

BAN devices may be embedded inside the body as implants or pills, may be surface-mounted on the body in a fixed position, or may be accompanied devices which humans can carry in different positions, such as in clothes pockets, by hand, or in various bags.

While there is a trend toward the miniaturization of devices, in particular body area networks which consist of several miniaturized body sensor units (BSUs) together with a single body central unit (BCU),larger decimeter (tab and pad) sized smart devices still play an important role in terms of acting as a data hub or data gateway and providing a user interface to view and manage BAN applications, in-situ.

The development of WBAN technology started around 1995 around the idea of using wireless personal area network (WPAN) technologies to implement communications on, near, and around the human body. About six years later, the term "BAN" came to refer to systems where communication is entirely within, on, and in the immediate proximity of a human body.

A WBAN system can use WPAN wireless technologies as gateways to reach longer ranges. Through gateway devices, it is possible to connect the wearable devices on the human body to the internet. This way, medical professionals can access patient data online using the internet independent of the patient location.

Computer network types by scale:

--Nanoscale
--Near-field (NFC)
--Body
--Personal (PAN)
--Near-me
--Local (LAN)
-----Storage (SAN)
-----Wireless (WLAN)
-----Virtual (VLAN)
--Home (HAN)
--Building
--Campus (CAN)
--Backbone
--Metropolitan (MAN)
-----Municipal wireless (MWN)
--Wide (WAN)
--Cloud
--Internet
--Interplanetary Internet

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