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FreeSpeech: A Novel Wireless Approach for Conference Projecting and Cooperating

  • Wenbin Jiang
  • Hai Jin
  • Zhiyuan Shao
  • Qiwei Ye
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4159)

Abstract

This paper presents a novel wireless projecting and cooperating approach named FreeSpeech based on Ad Hoc network, which makes conference exchange more convenient and ubiquitous. All attendees can access this system by their laptops or other mobile computing devices all around the conference venue and make the projections of their presentations without connecting to the projector physically. Moreover, they can make cooperative display simultaneously with others. FreeSpeech takes a mixed Virtual Networking Computing (VNC) C/S mode based on some improvements on the traditional ones. A novel IP multicast-based transfer and control mechanism is presented to make large numbers of attendees obtain the wall screen contents by their laptops locally without aggravating the overhead of bandwidth remarkably. An efficient remote screen synchronization method is employed to transfer screens of some attendees to the projector-connected computer, which also can save the consumed bandwidth significantly. All above methods use the limited wireless bandwidth more efficiently. Performance evaluation shows that this approach can work perfectly for ubiquitous conference occasions.

Keywords

Small Rectangle Screen Data User Registration Screen Content Conference Venue 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Wenbin Jiang
    • 1
  • Hai Jin
    • 1
  • Zhiyuan Shao
    • 1
  • Qiwei Ye
    • 1
  1. 1.Cluster and Grid Computing LabHuazhong University of Science and TechnologyWuhanChina

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