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Wireless Body Sensor Networks (WBSN) in HealthcareWireless Body Sensor Networks (WBSN) in Healthcare

Aljoharah A. AlgwaizComputer Science & Engineering Department

The University of Connecticut371 Fairfield Road, Box U-255

Storrs, CT 06269-2155

Aljoharah.algwaiz@uconn.edu

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IntroductionIntroduction Chronic diseases are the leading cause of deaths in the

U.S. with 7 out of 10 deaths each year. Heart disease, cancer and stroke account for more than 50% of all deaths each year.

In-hospital screening provide a one-time “snapshot” In-hospital screening provide a one-time “snapshot” reading.reading.Advances in technology provided an opportunity to develop Wireless Body Sensor Networks for continuous monitoring.

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Wireless Body Sensor Networks (WBSN)Wireless Body Sensor Networks (WBSN) It is a network that works around the human body. The network consists of one or more body sensors

used with a central management device. It can be used not only for medical uses, but also in

other fields such as in military or sports. WBSN nodes contain sensors ,transceiver, processors, sensors ,transceiver, processors,

accelerometers, and batteriesaccelerometers, and batteries

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Wireless Sensor Networks (WSN)Wireless Sensor Networks (WSN)

Wireless body sensors can be implanted, injected, Wireless body sensors can be implanted, injected, or worn on human body.or worn on human body.

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MotivationMotivation Improve diagnosisImprove diagnosis Early Alert and DetectionEarly Alert and Detection Engage patient in his healthcareEngage patient in his healthcare Lower cost of care deliveryLower cost of care delivery Automated data collectionAutomated data collection Continuous MonitoringContinuous Monitoring

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Communication StandardsCommunication Standards

Data transfer from sensors to central managing deviceData transfer from sensors to central managing device IEEE 802.15.4 communication standard (basis for

zigbee, MiWi) and can be used with 6LoWPAN Bluetooth

Data transfer between central managing device and Data transfer between central managing device and database, provider, or other system. database, provider, or other system. WLAN

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General ArchitectureGeneral Architecture

First Stage Second Stage Third Stage

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Important ConsiderationsImportant Considerations MaterialsMaterials Weight and sizeWeight and size Durability Durability ReliabilityReliability EnergyEnergy SecuritySecurity

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SecuritySecurity Security Objective:Security Objective:

Data Confidentiality Data Integrity Device Authentication User Authentication and Access Control Service Availability

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Application AreasApplication Areas Heart Attack DetectionHeart Attack Detection Heart SensorHeart Sensor Wireless Insulin PumpsWireless Insulin Pumps Continuous glucose monitoring (CGM) systemsContinuous glucose monitoring (CGM) systems

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Application AreasApplication Areas Fitness and weight managementFitness and weight management Blood PressureBlood Pressure Body Movement and Position Body Movement and Position monitormonitor

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Processing for WBSNProcessing for WBSN Data processing and analysis is the final stage of data Data processing and analysis is the final stage of data

body sensor networks. body sensor networks. Data processing and data management can be done Data processing and data management can be done

through a smartphone application such as through a smartphone application such as MyFitnessPal, a dedicated device such as MyFitnessPal, a dedicated device such as Alere HomeLink, or web-based platform such as HealthVault.

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ChallengesChallenges InteroperabilityInteroperability Device SecurityDevice Security InterferenceInterference Data ManagementData Management Energy ConsumptionEnergy Consumption CostCost EligibilityEligibility User interfaceUser interface Body ReactionBody Reaction Accuracy and promptnessAccuracy and promptness

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Potentials and Future AdvancesPotentials and Future Advances The WBSN field is still considered in its early The WBSN field is still considered in its early

development and has high development potential.development and has high development potential. Smaller in size and lower in cost.Smaller in size and lower in cost. Transmit to longer distances.Transmit to longer distances. Lowering power consumption and finding other Lowering power consumption and finding other

energy resources. energy resources. WBSN system will be integrated with other technical WBSN system will be integrated with other technical

devices. devices. Sensors designs will focus on sending an alert even Sensors designs will focus on sending an alert even

before symptoms emerge.before symptoms emerge.

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ConclusionConclusion

WBSN is a special kind of wireless sensor network WBSN is a special kind of wireless sensor network that can work around the human body.that can work around the human body.

The rate of patients diagnosed that need chronic The rate of patients diagnosed that need chronic disease management is predicted to increase in the disease management is predicted to increase in the future.future.

WBSN will help make a shift in medical healthcare from hospitals making patient more engaged in their healthcare management.

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ConclusionConclusion

WBSN will lower healthcare costs and provide an WBSN will lower healthcare costs and provide an automated in-home health monitoring service with automated in-home health monitoring service with minimal patient interference.minimal patient interference.

Security and energy consumption still need to be Security and energy consumption still need to be further developed in WBSN and expected to see further developed in WBSN and expected to see significant improvements in the future. significant improvements in the future.

Smartphones and tablets are becoming more complex Smartphones and tablets are becoming more complex and technically sophisticated. They are expected to be and technically sophisticated. They are expected to be further integrated wireless body sensors network.further integrated wireless body sensors network.

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Thank You