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Locational Affinity Awareness for BAN Applications

This document highlights the necessity of locational affinity awareness and technical requirements for Body Area Network (BAN) applications. It discusses the recognition of proximity between nodes based on parameters like distance, touch, and direction, facilitating automatic connection setup and context-aware services.

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Locational Affinity Awareness for BAN Applications

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  1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title:[Locational Affinity Awareness for BAN Applications] Date Submitted: [18thMar, 2008] Source: [Seung-Hoon Park / Noh-Gyoung Kang / Eun-Tae Won] Company [Samsung Electronics Co. Ltd.] Address [416, Maetan-3dong, Yeongtong-gu, Suwon-si, Gyeonggi-do, 443-742, Korea] Voice: [+82-31-279-4579], FAX: [+82-31-279-5130], E-Mail: [shannon.park@samsung.com] Re: [] Abstract: [This document describes the necessity of locational affinity awareness and technical requirements] Purpose: [To promote discussion within the BAN group of the necessity of locational affinity awareness as a kind of context awareness] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Seung-Hoon Park, Samsung

  2. Locational Affinity Awareness for BAN Applications Seung-Hoon Park, Samsung

  3. Purpose • To describethe necessity of locational affinity awareness for the various BAN applications Seung-Hoon Park, Samsung

  4. Locational Affinity Awareness • Recognize the degree of affinity between two nodes in the locational point of view • according to the measured parameters related of the physical proximity such as distance, touch, direction, etc • It may take time in measuring these parameters to get a certain recognition level Seung-Hoon Park, Samsung

  5. Locational Affinity Awareness • Function • A kind of context awareness • Automatic connection setup • User select an appropriate recommended connection • Objectives • To lighten loads for connecting proximate BAN devices manually • Locational affinity to help context-aware services Seung-Hoon Park, Samsung

  6. Applicable Cases • Medical • Patient monitoring or examination [1] • Non-medical • E-charm [2] (personal item tracking) • Smart key • Game application • Social networking service Seung-Hoon Park, Samsung

  7. Technical Components • Connection setup • Parameter measurement • Encounter related • Distance • Direction • Privacy and Security (E.G.) Locational Affinity = f (distance, direction, encounter) Seung-Hoon Park, Samsung

  8. Connection Setup Seung-Hoon Park, Samsung

  9. Connection Setup • Features • When two nodes encounter in the body-around range, the connection to exchange the temporary data should be established by the unconscious way • Methods • Neighbor node discovery • Fast hand-shaking Seung-Hoon Park, Samsung

  10. Measurement Seung-Hoon Park, Samsung

  11. Encounter related parameter • The ratio of encounter • The pattern of encounter • The type of encounter • Normal • Touch Seung-Hoon Park, Samsung

  12. Touch Awareness • Features • To recognize the close intimacy • the type of encounter (Normal, Touch) • Very powerful function for easy and intuitive connection setup of BAN devices • BAN system can distinguish the on/in-body node from the around-body node • Method • Human body communication Seung-Hoon Park, Samsung

  13. Distance Awareness • Features • The distance between two nodes is measured • The degree of affinity can be inferred from the measured distance • Method • Fine ranging technique Seung-Hoon Park, Samsung

  14. Direction Awareness • Features • Recognize whether the conversation is in the face-to-face condition or not • Methods • RF technology • Geo-magnetic sensor • Vision/image processing • Others? Seung-Hoon Park, Samsung

  15. Privacy and Security Seung-Hoon Park, Samsung

  16. Privacy and Security • Automatic connection setup for the locational affinity awareness is not secure • Authentication should be done for some use-cases • An application considering user privacy • a group-aware application • making a random encounter into authenticated one • Identification may be inevitable to get higher security Seung-Hoon Park, Samsung

  17. Conclusion • Locational affinity awareness is required for some BAN applications • Required Techniques • Neighbor node discovery & hand-shaking • Ranging • Human body communication • Authentication or identification Seung-Hoon Park, Samsung

  18. References • [1] “Managing Wireless Health Monitoring for Patients with Disabilities”, Varshney, U.; IT Professional, Volume 8, Issue 6, Nov.-Dec. 2006 Page(s):12 – 16 • [2] IEEE 15-07-0545-00-0, Non Medical Applications Wban, OKI Electronics Seung-Hoon Park, Samsung

  19. Thank you!! Seung-Hoon Park, Samsung

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