WIFI广播系统的设计与实现

发布时间：2018-06-19 02:18

本文选题：IP多媒体子系统 + 移动多媒体广播　；参考：《华南理工大学》2009年硕士论文

【摘要】： 如今,无线技术日趋成熟,3G技术、WIFI技术不断完善并得到支持。在无线接入得到保证的基础上,能给客户带来什么样的信息资源,能为客户提供什么样的移动增值服务,是获得客户青睐的重要条件。以移动电视、VOD点播、视频会议等业务为主的移动网络服务比文字信息和音频信息业务具有更直观更多样化的优势。在国外,随着IP多媒体子系统(IMS,IP Multimedia Subsystem)通信方式的技术规格在日本由多家厂商联合通过测试并获得成功,国外的移动多媒体业务不断开展。但是IMS技术对国内厂商还比较陌生,能否被国内市场所接受还有待时间和市场的考验。国内的移动多媒体研究也不甘落后,2005年广电总局确定了“天地一体”的移动多媒体广播(CMMB,China Mobile Multimedia Broadcasting)技术体制和方案。但是这套方案依赖于卫星转播和地面大型基站的建设,而且客户端必须加装特定的模块才能支持。要发展起来也需要时间和市场的考验。然而,随着WIFI无线信号的铺开,通过WIFI进行无线接入的模式已经非常普及。同时,目前流行的Symbian、Windows Mobile、Android等智能手机操作系统都能够很好地支持各种编码方式的多媒体应用。本论文就是在这样的背景下,基于已经相当成熟的WIFI接入技术,针对智能手机终端设计一套WIFI广播系统,研究如何让智能手机终端通过WIFI连接接收视频信息,并可扩展视频点播、广告推送等多业务平台,提出利用WIFI网络对视频信息进行组播的方式,解决在视频播放不顺畅的情况下如何进行补偿,保证手机终端收看视频的顺畅。
[Abstract]:Today , wireless technology is becoming mature , 3G technology and Wi - Fi technology are continuously improved and supported . On the basis of wireless access , what kind of information resources can be brought to customers and what kind of mobile value - added service can be provided to customers is the important condition that customers favor . Mobile network services such as mobile TV , VOD on demand and video conference have more visual and more diversified advantages than text information and audio information service .

In foreign countries , as IP Multimedia Subsystem ( IP Multimedia Subsystem ) communication mode has been successfully tested and successful by several manufacturers , mobile multimedia service abroad has been continuously carried out . However , IMS technology is still unknown to domestic manufacturers , and can be accepted by domestic market for time and market . However , the scheme relies on the construction of satellite relay and ground large base station , and the client must install specific module to support . It also needs time and market test .

However , with the spreading of the wireless signal , the mode of wireless access is very popular through Wi - Fi . At the same time , it is very popular for smart phone operating systems such as symbian , Windows Mobile and Android to support multimedia applications in all kinds of coding modes . In this background , based on the quite mature Wi - Fi access technology , this paper researches how to make the smartphone terminal receive video information through the Wi - Fi connection , and to expand the multi - service platform such as video on demand and advertisement push .
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2009
【分类号】：TP311.52

【引证文献】