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A General Architecture of Mobile Social Network Services

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    1. 1. A General Architecture of Mobile Social Network Services (MSNS) Written by Yao-Jen Chang, Hung-Huan Liu Li-Der Chou, Yen-Wen Chen Haw-Yun Shin
    2. 2. Outline <ul><li>Introduction </li></ul><ul><li>Related work of Mobile Social Network Services (MSNS) </li></ul><ul><li>MSNS System Architecture </li></ul><ul><li>Prototype Implementation and Results </li></ul><ul><li>Conclusions </li></ul>
    3. 3. <ul><li>1. Introduction </li></ul>
    4. 4. What is the MSNS <ul><li>Social networks are personal or professional sets of relationships between individuals. </li></ul><ul><li>Mobile Social Network Services (MSNS) are technology-enabled services that adopt wireless and mobile communications to increase the closeness of one’s social networks. </li></ul>
    5. 5. Background <ul><li>The advances of information technology : </li></ul><ul><li>The end-system devices, information technology, and the Internet are allowing innovative application and services. </li></ul><ul><li>The handheld devices with wireless data connectivity through Wi-Fi or cellular networks enable users to keep connected with many hosts and servers via the Internet. </li></ul>
    6. 6. Background (Cont.) <ul><li>The web has evolved into an environment that allow clients to build new, customized mash-up services from a few more primitive services without centralized servers. </li></ul><ul><li>Mobile communication technology enables ubiquitous access which has the potential to create scenarios of increased human interactions in forms of computer mediated communication. </li></ul>
    7. 7. Background (Cont.) <ul><li>Metropolitan Wi-Fi network projects have been launched in many cities and towns worldwide. </li></ul><ul><li>Access Point (APs) become part of triangulation schemes in location technology. </li></ul><ul><li>Global Positioning System (GPS) and cellular network assisted location technology is becoming mature and affordable. </li></ul><ul><li>The combination of wireless communication and location technologies makes it possible to develop location based services (LSBs). </li></ul>
    8. 8. Motivation <ul><li>New methods of collecting data on social networks have emerged with the prevalence of the Internet and ubiquitous mobile social network services . </li></ul><ul><li>User-location information is frequently used in mobile social network services. </li></ul><ul><li>Most of LBS applications are carrier-triggered where the user subscribes to the services and the system decides to send text messages when a predetermined condition is met. </li></ul>
    9. 9. Motivation <ul><li>Most current mobile social network services work on a “push” basis: </li></ul><ul><ul><li>the system sends information, which is related to the user’s location, to the user. </li></ul></ul><ul><ul><li>The user normally does not have the capability to query for the information that is provided by someone or the user at some specific location. </li></ul></ul><ul><ul><li>the messages received can become occasionally irrelevant. </li></ul></ul>
    10. 10. Purposes <ul><li>proposes a general architecture capable of supporting location-based, personalized, interactive mobile social network services using mainly metropolitan Wi-Fi networks in the context of social services. </li></ul><ul><li>aim to use mobile social network services as a measure to increase social connectedness and improve the quality of life for the majority of otherwise-employable persons who remain unemployed, rarely access appropriate community services, and are socially isolated. </li></ul>
    11. 11. <ul><li>2.Related work of MSNS </li></ul>
    12. 12. Related work of MSNS <ul><li>Some applications of social network services on the Internet have grown famous and recruit significant number of members : </li></ul><ul><ul><li>Buzz-oven , Myspace, </li></ul></ul><ul><ul><li>GoPets, Friendster, </li></ul></ul><ul><ul><li>Dodgeball, Plazes, </li></ul></ul><ul><ul><li>Jambo Networks , Playtxt, </li></ul></ul><ul><ul><li>PeopleNet, Reality Mining project, </li></ul></ul>
    13. 13. LBS vs. MSNS <ul><li>Location-Based Services (LBS) architecture: </li></ul><ul><li>based on Common Object Requester Broker Architecture (CORBA) and The Java-based Remote Method Invocation (RMI) </li></ul><ul><li>Location-based information has to be processed and transported in the carrier network in LBS application programming interface (API) server. </li></ul><ul><li>LBS architecture is tightly coupled with telecom operator’s core network; </li></ul><ul><li>the implementation of CORBA and RMI over cellular networks can be costly and time-consuming . </li></ul>
    14. 14. LBS vs. MSNS <ul><li>Proposed MSNS architecture: </li></ul><ul><li>sees Wi-Fi and cellular networks as TCP/IP pipes; </li></ul><ul><li>no new API has to be implemented inside the Wi-Fi distribution network or cellular’s core network. </li></ul><ul><li>uses mash-up of web services instead of the middleware platform such as CORBA or RMI. </li></ul><ul><li>much fewer APIs are actually needed. </li></ul><ul><li>makes the architecture more modular and easier to leverage existing web services such as Google Maps. </li></ul>
    15. 15. 3.MSNS System Architecture <ul><li>MSNS system architecture consists of four main components: </li></ul><ul><ul><li>The Client Devices </li></ul></ul><ul><ul><li>The Wireless Access Network </li></ul></ul><ul><ul><li>The Internet and its hosts </li></ul></ul><ul><ul><li>The Server Side </li></ul></ul>
    16. 16. System architecture of MSNS
    17. 17. Server Side <ul><li>There are five modules at the Server Side. </li></ul>
    18. 18.
    19. 19. <ul><li>4. Prototype Implementation and Results </li></ul>
    20. 20. 4. Prototype Implementation & Results <ul><li>Many applications can be developed utilizing the proposed MSNS architecture. </li></ul><ul><li>A MSNS prototype system is currently being developed in Taiwan to help social workers with the field work. </li></ul><ul><li>The project team consists of psychologists, social scientists, welfare policy researchers, social workers, engineers and professors with IT industry practices and experiences . </li></ul>
    21. 21. Prototype System <ul><li>designed for job coaches at several Taipei-based rehabilitation institutes. </li></ul><ul><li>helping the mental disorders learn how to travel to and from the work. </li></ul><ul><li>a PDA with wayfinding, is carried by the individual who has difficulty in taking public transit to and from work. </li></ul><ul><li>The PDA shows the just-in-time directions and instructions by displaying spot photos, triggered by pictures of geo-coded QR codes taken by the built-in PDA camera. </li></ul>
    22. 22. Prototype System (Cont.) <ul><li>The server at the heart of the prototype detects the person who has deviated from the preset route to and from the work, and then the matching module tries to locate the job coaches who are within a distance from the lost person. </li></ul><ul><li>The alerts are sent to the PDAs of the matched job coaches, and one of them may confirm with the availability of coming to the help. </li></ul>
    23. 23. MSNS Prototype System (a) A campus as the testbed where the dots stand for 410 Wi-Fi Access Point
    24. 24. MSNS Prototype System <ul><li>(b) QR codes for (c) The Wayfinding wayfinding device </li></ul>
    25. 25. MSNS Prototype System <ul><li>(d) Lost person (in red) and the nearby job coaches (in bule) determined by the system. </li></ul>
    26. 26. MSNS Prototype System <ul><li>(e) Service providers and users </li></ul>
    27. 27. MSNS Prototype System <ul><li>(f) Group Management </li></ul>
    28. 28. MSNS Prototype System <ul><li>(g) Blog </li></ul>
    29. 29. Prototype System <ul><li>(h) Forum </li></ul>
    30. 30. 5. CONCLUSIONS <ul><li>User-location information along with advances in information technology and communications are facilitating the development of many personalized, multimedia, interactive, mobile social network services that will add convenience and welfare to people’s everyday lives. </li></ul><ul><li>This paper has described a general MSNS architecture utilized to support these types of applications. </li></ul>
    31. 31. 5. CONCLUSIONS <ul><li>The proposed MSNS architecture : </li></ul><ul><ul><li>Can support both indoor and outdoor positioning, </li></ul></ul><ul><ul><li>function without changes to the core cellular network, </li></ul></ul><ul><ul><li>use mash-up of web services, </li></ul></ul><ul><ul><li>and take into account the issues of mobile social network services in the context of social services. </li></ul></ul>
    32. 32. The End Thank your