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基于Wi-Fi Direct的多屏融合系统的设计与实现 被引量:2

Design and implementation of Wi-Fi Direct based multi-screen interaction system
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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。 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.
出处 《计算机应用》 CSCD 北大核心 2015年第6期1801-1804,共4页 journal of Computer Applications
基金 国家自然科学基金资助项目(61233003 61174062)
关键词 对等网络 多屏融合 接入点 接入带宽 信息共享 Peer-to-Peer (P2P) multi-screen interaction access point access bandwidth information sharing
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