本文選題：3G + 新媒體�。� 參考：《東北大學》2014年博士論文

【摘要】：移動互聯(lián)網(wǎng)快速發(fā)展和普及,傳媒業(yè)和通信業(yè)結(jié)合更加緊密。人們已經(jīng)習慣通過智能終端獲取各種信息,這為傳統(tǒng)媒體提供了新的信息發(fā)布渠道。傳統(tǒng)廣播電臺借助全新的移動互聯(lián)網(wǎng)傳播媒介,可以打破AM/FM頻段限制、接收終端限制、覆蓋空間限制和信息單向傳播限制,大力發(fā)展基于3G的新媒體廣播已經(jīng)成為業(yè)界共識。本文按新媒體廣播業(yè)務流程的順序,分別對編輯、播出和收聽環(huán)節(jié)的相關技術進行了研究,具體內(nèi)容包括以下幾個方面：(1)針對編輯環(huán)節(jié)的數(shù)據(jù)存儲問題,提出了海量數(shù)據(jù)近線存儲方案。在線、近線、離線數(shù)據(jù)都采用普通硬盤作為存儲介質(zhì),通過高速交叉開關實現(xiàn)數(shù)據(jù)迅速移動,突破了不同介質(zhì)間傳遞數(shù)據(jù)的帶寬限制,降低了時間成本,是一種低成本的具有無限擴展能力的數(shù)據(jù)存儲方案。(2)針對播出環(huán)節(jié)的個性化播出問題,提出了流媒體矩陣的設計方案。流媒體矩陣將傳統(tǒng)廣播的同類節(jié)目匯聚后重新組合,為每一個聽眾定義一路輸出,突破了傳統(tǒng)廣播頻率資源不足的限制,將傳統(tǒng)廣播的編播能力納入到新媒體業(yè)務流程中,實現(xiàn)細粒度的個性化窄播。(3)針對播出環(huán)節(jié)主服務-會話控制功能(S-CSCF)組件服務器失效后無法迅速恢復服務的問題,提出了S-CSCF的迅速恢復方案。采用心跳線檢測系統(tǒng)級故障,采用第三方注冊請求方式實現(xiàn)用戶注冊信息備份,將備份壓力平均分布。采用同一個域名對應兩個IP地址方式實現(xiàn)故障時切換,保證當主服務器失效時,備份S-CSCF組件服務器迅速接管服務。(4)針對收聽環(huán)節(jié)中智能收聽終端能耗和帶寬過高的問題,提出了可擴展信息和出席協(xié)議(XMPP)的改進方案。改進的XMPP協(xié)議將高能耗的傳輸層安全機制分離出來,代之以安全體系結(jié)構(gòu)達到降低功耗、提高終端續(xù)航能力目的。采用節(jié)攔截和過濾技術協(xié)商最小通訊消息集合,節(jié)省了帶寬,改善了用戶體驗。(5)針對收聽環(huán)節(jié)中新、舊兩種媒體反饋信息融合的問題,提出了背靠背用戶代理(SIP-B2BUA)組件方案。利用SIP-B2BUA組件將用戶電話服務CLASS-5的特性融入VoIP系統(tǒng),透明地將傳統(tǒng)熱線電話的反饋信息融入到新媒體廣播系統(tǒng),實現(xiàn)了新、舊兩種廣播系統(tǒng)反饋信息的共享。(6)針對測試工具缺乏問題,提出了RTSP流媒體服務器性能測試方案。多個偽終端實例隨機訪問流媒體服務器上的多個RTSP地址,模擬現(xiàn)實的使用過程。為避免偽終端服務器的資源被耗盡,另外約定IP地址和端口接收RTP媒體流,偽終端服務器只處理并發(fā)的RTSP信令,達到定量測試的目的。對上述研究成果進行了實驗測試和實際應用,測試數(shù)據(jù)和使用效果表明,基于3G的新媒體廣播系統(tǒng)有效可行。3G新媒體廣播是一項復雜的系統(tǒng)工程,除了本文所做工作外,在新媒體業(yè)務流程設計、與IMS系統(tǒng)深度融合等方面還有待進一步改進和完善。
[Abstract]:With the rapid development and popularization of mobile Internet, the media industry and communication industry are combining more closely. People have been used to obtaining various information through intelligent terminals. This provides a new channel for information dissemination for traditional media. The traditional radio stations can use the new mobile Internet communication media to break the limits of AM/FM frequency bands and receive terminal restrictions. The development of new media broadcasting based on 3G has become an industry consensus. This paper, according to the order of the new media broadcasting business process, studies the related technologies of editing, broadcasting and listening. The specific contents include the following aspects: (1) the data storage of the editing link is asked. On the line, the line, the offline data and the off-line data are used as the storage medium, and the data can be moved quickly through the high speed cross switch, which breaks through the bandwidth limitation and reduces the time cost between different media. It is a low cost data storage scheme with unlimited expansion ability. (2) in view of the personalized broadcasting problem of the broadcast link, a design scheme of the streaming media matrix is proposed. The streaming media matrix recombines the traditional broadcast of the same program, defines the output for each audience, breaks through the limitation of the shortage of traditional broadcasting frequency resources, and integrates the traditional broadcasting capability into the new media business flow. In the process, the fine-grained personalized sowing is realized. (3) in view of the problem that the main service session control function (S-CSCF) server of the broadcast link can not recover the service quickly after the failure of the component server, a quick recovery scheme of S-CSCF is proposed. The system level fault of the heartbeat line is detected and the user registration information backup is realized by using the third party registration request. The average distribution of backup pressure is distributed. When the same domain name corresponds to two IP addresses, a fault switch is realized. When the main server fails, the backup S-CSCF component server takes over the service quickly. (4) the improvement of the energy consumption and the high bandwidth of the intelligent listening terminal in the hearing link is proposed, and the improvement of the extensible information and the attendance protocol (XMPP) is proposed. The improved XMPP protocol separates the high energy transport layer security mechanism, replacing it with the security architecture to reduce the power consumption and improve the terminal endurance. Using the node interception and filtering technology to negotiate the minimum communication message set, save the bandwidth and improve the user's test. (5) the new and old two kinds of media are counter to the hearing link. The back-to-back user agent (SIP-B2BUA) component scheme is proposed. Using the SIP-B2BUA component, the characteristics of the user telephone service CLASS-5 are integrated into the VoIP system, and the feedback information of the traditional hotline telephone is transparently integrated into the new media broadcasting system, and the feedback information of the new and old two broadcasting systems is shared. (6) The test tool is lacking, and the performance test scheme of RTSP streaming media server is proposed. Multiple pseudo terminal instances randomly access multiple RTSP addresses on the streaming media server, simulate the use process of the reality. In order to avoid the resource of the pseudo terminal server being exhausted, the IP address and port receive the RTP media stream, and the pseudo terminal server only handles and deals with it. RTSP signaling to achieve the purpose of quantitative testing. Experimental testing and practical application of the above research results, test data and application results show that the effective and feasible new media broadcasting system based on 3G based new media broadcasting system is a complex system engineering. In addition to the work done in this paper, the new media business process design, and the IMS system are designed. The depth of integration and other aspects need further improvement and improvement.
【學位授予單位】：東北大學
【學位級別】：博士
【學位授予年份】：2014
【分類號】：TN931;TN929.53

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本文編號：1945471