计算机应用 ›› 2015, Vol. 35 ›› Issue (6): 1801-1804.DOI: 10.11772/j.issn.1001-9081.2015.06.1801

• 行业与领域应用 • 上一篇    

基于Wi-Fi Direct的多屏融合系统的设计与实现

刘崴, 张树本, 朱锐意, 杨坚   

  1. 中国科学技术大学 信息科学技术学院, 合肥 230027
  • 收稿日期:2014-12-19 修回日期:2015-02-10 发布日期:2015-06-12
  • 通讯作者: 刘崴(1989-),男,安徽合肥人,硕士研究生,主要研究方向:多媒体通信、网络系统建模与优化;liuwei10@mail.ustc.edu.cn
  • 作者简介:张树本(1986-),男,湖北襄阳人,博士研究生,主要研究方向:随机分析与优化、绿色计算;朱锐意(1988-),女,安徽庐江人,博士研究生,主要研究方向:无线通信环境下的资源优化;杨坚(1977-),男,浙江诸暨人,副教授、博士生导师,主要研究方向:未来网络、随机优化。
  • 基金资助:

    国家自然科学基金资助项目(61233003,61174062)。

Design and implementation of Wi-Fi Direct based multi-screen interaction system

LIU Wei, ZHANG Shuben, ZHU Ruiyi, YANG Jian   

  1. School of Information Science and Technology, University of Science and Technology of China, Hefei Anhui 230027, China
  • Received:2014-12-19 Revised:2015-02-10 Published:2015-06-12

摘要:

针对目前多屏融合系统占用家庭无线带宽过大且终端设备与路由连接不稳定的问题,提出了基于Wi-Fi直连技术的多屏融合系统。该系统中,智能终端之间无需通过无线访问接入点直接进行对等网络连接,进而达到多屏互动内容流和显示流的无缝融合。介绍了系统的框架设计与实现,根据低时延、高兼容性的原则,完成了智能终端(如智能手机、电视等)上搭载的Android应用软件。实验测试结果表明:与依赖于无线局域网的传统多屏融合系统相比,该系统在运行时的播放时延和丢包率方面有明显改善,终端之间不仅连接稳定,而且连接距离提升约一倍,且系统无需占用无线局域网的带宽。

关键词: 对等网络, 多屏融合, 接入点, 接入带宽, 信息共享

Abstract:

To solve the problems of current multi-screen interaction systems such as high bandwidth occupancy of Wide Local Area Network (WLAN) and unstability between terminal devices and the router, a multi-screen interaction system based on Wi-Fi Direct was proposed, which directly connected two intelligent devices not via any access points and delivered content of one device to the other. The design of the system was detailedly described. According to the the principles of low delay and high compatibility, the proposed system was realized by developing an Android APP used on a smart phone or a smart TV. The test of the proposed system in practice shows that time delay and packet loss rate have been reduced in comparison with conventional multi-screen system depending on the WLAN. Also, the connection provided by Wi-Fi Direct between two devices is stable and the distance has been doubled. Besides, the structure of the proposed system has no request for WLAN bandwidth.

Key words: Peer-to-Peer (P2P), multi-screen interaction, access point, access bandwidth, information sharing

中图分类号: