Wireless Body Area Network WBAN EE 400 Presentation

Wireless Body Area Network (WBAN) EE (400) Presentation Prepare by Wael Ba-deghaish Mohamed Ba-oum For Dr Samir Al-Ghadban

Presentation Outline: 1 Introduction 2 Stander 3 Archatcher 4 OSI Layer 5 WBAN Drawback 6 Conclution

introduction • What is WBAN? . • What is the benefit of using WBAN( Ali story). • Learn How this Tech work • Figure 1: data follow into integrate in WBAN system[3]

WBAN Stander ØNot yet specified. ØWBAN application of WPAN (WSN , Zigbee) 802 -15 Figure 2: wireless group stander[2]

Arctiture • Three Tire Figure 3: WBAN architecture[1]

Tire: WBAN Sensor • Consist of intelligent node ( sensing, sampling, processing, and communicating) • Sensor Arcticture Figure 4: Sensor node[3]

Example of WBANs 1 ECG(monitoring heart activity) Figure 4: 2 EMG (electromyography) 3 For sensing motion ( activity) figure 5: Example of sensor node[3]

Tire 2: Personal server • interface the WBAN sensor nodes through Zigbee or Bluetooth. • Connected with the medical server through mobile telephone networks (2 G, GPRS, 3 G) or WLANs—Internet • Implemented regularly at cell phone. • Functions: 1 -Register type and number sensor node. 2 -manages the network channel sharing, time synchronization, and processing data. 3 -Send data to MS

Tire 3 -Medical server • Function: 1 -to authenticate users 2 -Save patient data into medical records 3 -analyze the data. 4 - recognize serious health cases in order to contact emergency care givers , 5 -forward new instruction to user.

WBAN Layers Why layering?

Physical Layer ü Radio Band figure 6: Radio Band of WBAN [1] ü Modulation ü Data Rate table 1: modulation type of WBAN[1] table 2: data rate of WBAN sensor[1]

Data Link Layer Ø Data Link Layer § Objective ü DLL Responsible for Reliable Transfer of Frames from one node to the other (no loss, no corruption, no duplication) Ø MAC • Control access to the shared medium (radio channel) • Avoid interference between transmissions

Data Link Layer Ø MAC protocol § ü ü (CSMA-CA) use with wireless LAN simplicity implementation lower system cost reliable data transmission § TDMA( Schedule Protocol) ü WWAN like (GSM) Figure 7: CSMA/CA protocol procedure [1]

MAC protocol comparison: table 3: comparison between TDMA and CSMA/CA

Network Layer ØProtocol is IP Ønetwork topologies within WBAN • Peer-to-peer communication (WLAN) üAd-Hoc Routing • Infrastructure (WWAN) üAccess point (AP) or base station (BS) • Figure 7: Two different network topologies are depicted: (a) ad hoc mode and (b) infrastructure mode [3].

Transport Layer Ø Objective Ø TCP protocol ü Reliable (because relate with human health) ü Acknowledgment Application Layer Ø Data from sensor send as email Ø Use Simple Mail Transfer Protocol (SMTP)

Summary WBAN Layers

Drawback WBAN Ø Battery Life ü factors affecting the battery life is The radio transmission update period ü battery live for months Ø Security Ø To make WBAN more security: ü ü ü Authenticate Verify Encrypt Key Management FHSS figure 8: Battery live for WSN [2] Figure 9: FHSS protocol [2]

Conclusion : Ø WBAN serve patient and Doctor Ø Improve WBAN to avoided security and interference problem Ø In future may Build new stander WBAN Ø In future improve WBAN to use with 4 G (WI-MAX)

Reference Ø (Performance Evaluation of a Wireless Body Area Sensor Network for Remote Patient Monitoring) Jamil Y. Khan, Mehmet R. Yuce, and Farbood Karami Ø Dr Ab-dulghani (P&CSD/PID/CNU) Handout Aramco coures, (wireless network and wireless plant application) Ø Katrin Bilstrup, A Preliminary Study of Wireless Body Area Networks, Halmstad University, School of Information Science. Ø 4 -Tomas H. Gorhm, Play Simplicity for Wireless Body Area Networks, IEEE Gornal, 2008 -11

Thank you