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Wireless Body Area Network
Last Updated : 18 Apr, 2023
In today's world, wireless communication has a major application in sharing of information anywhere and at anytime. We can use wireless networks in the form of WLAN or Wi-Fi in various fields such as education, healthcare, and industrial sector. As the technology is growing, the demands of users as well as the demand of ubiquitous networking is increasing. WBAN(Wireless Body Area Network) allows the user to move another without having the restriction of a cable for sharing information.
The term 'Wireless Body Area Network' was coined in 2001 by Van Dam. It basically is a network containing sensor nodes that are attached to the human body, used to measure the bio signals(heart rate, blood pressure, brain signals, etc.) of humans. It has majority of applications in medical sector.
The communication in body sensor networks is of 2 types:
In-body communication
On-body communication
In-body communication is the communication between sensor nodes that are implanted inside human body. The MICS (Medical Implant Communication System) communication can be used only for in-body communication. On-body communication occurs between wearable devices which consist of sensor nodes. The ISM (Industrial Scientific and Medical) band and UWB (Ultra-wideband) communication can be used only for on-body communication.
WBAN requirements:
Low power consumption
Interoperability
Self-healing
Security
Low latency
WBAN architecture:
The network architecture is divided into 4 sections-
WBAN Part -
It contains several number of cheap and low-power sensor nodes, which can be used for continuous monitoring of heart rate, ECG, blood pressure, etc. of a person. Being wireless in nature, this does not restrict the mobility of the person for continuous evaluation. Hence, WBAN is used in healthcare systems for patients monitoring.
CCU (Central Control Unit) -
All sensor nodes provide their outputs to a central coordination node present in the CCU. CCU receives the signals from nodes and transmits it to the next section for monitoring the human body.
WBAN communication -
Receives information from CCU and acts as gateway to transfer information to the destination. For ex. mobile node is a gateway to remote station to send message to cellular network using GSM/3G/4G.
Control center -
It is responsible for storing the information of user which can be used in the future or for monitoring purpose. It consists of end node devices like mobile phones(for messaging), computer systems (for monitoring), and server(for storing information in database).
WBAN applications:
These are various applications:
-
Medical Applications:
Remote healthcare monitoring - Sensors are put on patient's body to monitor heart rate, blood pressure and ECG.
Telemedicine - Provides healthcare services over a long distance with the help of IT and communication.
-
Non-medical Applications:
Sports - Sensors can be used to measure navigation, timer, distance, pulse rate, and body temperature.
Military - Can be used for communication between soldiers and sending information about attacking, retreating or running to their base commander.
Lifestyle and entertainment - Wireless music player and making video calls.
WBAN is legal, affordable, and user-friendly. It is an emerging technology and is expected to have a big impact on the society.
Advantages of WBAN:
1.Improved medical care: WBAN can further develop medical services by observing patients progressively, recognizing anomalies, and cautioning clinical experts of potential wellbeing gambles.
2.Increased portability: WBAN permits patients to move around uninhibitedly, without being fastened to a clinical gadget, consequently working on their personal satisfaction.
3.Enhanced patient solace: WBAN gadgets are normally little, lightweight, and unpretentious, making them more agreeable to wear for broadened timeframes.
4.Cost-successful: WBAN gadgets are moderately cheap contrasted with customary clinical gadgets, which can decrease medical care costs.
5.Personalized consideration: WBAN gadgets can be altered to suit every patient's singular necessities and conditions, giving customized care.
Disadvantages of WBAN:
1.Security and protection concerns: Remote correspondence can be caught, raising worries about the security and security of touchy clinical information.
2.Interference: WBAN gadgets can be impacted by obstruction from other remote gadgets, which can prompt information misfortune or sign contortion.
3.Limited territory: WBAN gadgets have restricted range, and their signs will most likely be unable to enter walls or different deterrents, which can restrict their utilization in certain conditions.
4.Battery life: WBAN gadgets depend on batteries, which might should be supplanted or re-energized oftentimes, contingent upon use.
5.Standardization: Absence of normalization of WBAN gadgets can make similarity issues among gadgets and breaking point their interoperability.
https://www.geeksforgeeks.org/computer-networks/wireless-body-area-network/
What is WBAN or IEEE 802.15.6?
What is the Wireless Body Access Network (WBAN) or 802.15.6?
Medical
1 Answer
Can you answer this question?
Answer
Editorial Team - everything RF
Mar 3, 2021
IEEE 802.15.6is an international wireless communication standard that is specifically designed for Wireless Body Area Networks (WBAN). WBAN networks support both in-body communication, and on-body communication. In-body communication is the network communication between biological sensors that are implanted inside the human body. On-body communication is the network communication between wearable devices that consist of various sensors such as fitness trackers. An example of on-body WBAN would be a patient equipped with biomedical sensors that can measure temperature, blood pressure, heart rate, electrocardiogram (ECG), and EEG. Fitness enthusiasts use trackers to monitor speed, pulse rate, and calories to track their performance. Hence these parameters can be seen via smartphone through a WBAN. WBAN networks are also called Body Area Network (BAN), Body Sensor Network (BSN), and Medical Body Area Network (MBAN).
https://www.researchgate.net/profile/Nadine-Boudargham/publication/310953547/figure/fig1/AS:433234535292934@1480302570828/WBAN-General-Architecture.png
The IEEE 802.15.6 standard has been specifically designed for low-power, short range devices. These networks can be based on star or multihop topology. Star topology is a network in which all the devices are connected individually to a centralized host such as a switch. Multi-hop topology is a network in which all devices are interconnected to each other and don’t have any centralized infrastructure for communication.
Specifications of IEEE 802.15.6 standard are as follows:
Database Management: The devices are embedded with fixed storage space to store information captured by the sensors.
Data Quality: The data acquired by the sensors should be accurate and precise especially for diagnostic purposes.
Security: The data acquired from each sensor shouldn’t be mixed with the data from other sensors. IEEE 802.15.6 standard provides confidentiality, authentication, integrity, and periodic updating of data from the sensor.
Interoperability: IEEE 802.15.6 standard ensure seamless data transfer across wireless standards such as Bluetooth, ZigBee, etc. It provides efficient migration across these networks and offers uninterrupted connectivity.
Interference: The wireless connection between body sensors will reduce interference and increases the coexistence of these sensors with other network devices that are available in the vicinity.
Applications of the IEEE 802.15.6 (WBAN) Standard:
Medical Applications
Biological sensors are placed on the patient’s body to monitor health parameters such as heart rate, blood pressure, EEG, and ECG.
Telemedicine facilities will provide healthcare services over a long distance with the help of IT and communication.
Non-medical Applications
The sensors can be used to measure navigation, timer, distance, pulse rate, and body temperature.
The communication channel between soldiers for sending information about attacking, retreating, or running to their base commander.
Wireless earphones or headphones for listening to music and making audio/video calls.
https://www.everythingrf.com/community/what-is-wban-or-ieee-802-15-6
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