高速局域网视频通信平台研究与实现
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摘要
论文对新兴VoIP协议IAX做了深入的研究和学习,并在掌握其工作原理、工作过程的基础上,对协议进行了扩展,使原协议支持多方视频通信的功能,对多方视频通信的呼叫流程、会话控制进行了详细的设计。对IAX协议源代码进行了系统的整理、优化,并且开发了多方视频通信模块。
论文对VoIP系统中的关键技术进行了研究和分析,为了解决视频会议中多路视频数据占用带宽量大的问题,提出了个人视角视频会议的概念,结合静音检测技术,实现视频会议中语音数据和视频数据的同步传输,并在实验室环境中成功实现了个人视角视频会议系统,测得了大量有效数据。
在研究VoIP系统的基础上,提出了高速局域网视频通信平台解决方案;对视频会议的系统结构、应用模式、功能模块等进行了系统研究和架构。局域网视频通信平台以VoIP技术为基础,以主席控制模式的视频会议为主要功能,并且与数据通信、程序共享、电子白板等辅助功能相融合,最终初步构建了一个软件视频通信平台。
This paper has a thorough ananlysis and research to the new VoIP protocol-IAX. IAX protocol is expanded partly according to its basic principle and proceeding. A new function multiple video communications is added into this protocol. Source code of IAX protocol is programmed, optimized and encapsulated to supply API (application programming interface) for further project development and the multiple video communications module is carried out.
Key technologies of VoIP system are studied in this paper. A new concept of Personal View Video Conference is put forward to resolve the problem of too much bandwidth used in the video conference system. VAD (voice activity detection) technology is used to carry out the synchronized transfer of voice data and video data. At last, a successful Personal View Video Conference system is constructed in the lab and much useful testing data are obtained.
A system of Video Communication Platform in high speed LAN is brought out on the base of VoIP system. A thorough research is made on the system structure, applicating modes and function modules of video conference system. A software Video Communiaction Platform is constructed in the form of chairman controlling multi-parts video conference system supplying many assistant functions such as data communication, program sharing, white board and so on.
论文对VoIP系统中的关键技术进行了研究和分析,为了解决视频会议中多路视频数据占用带宽量大的问题,提出了个人视角视频会议的概念,结合静音检测技术,实现视频会议中语音数据和视频数据的同步传输,并在实验室环境中成功实现了个人视角视频会议系统,测得了大量有效数据。
在研究VoIP系统的基础上,提出了高速局域网视频通信平台解决方案;对视频会议的系统结构、应用模式、功能模块等进行了系统研究和架构。局域网视频通信平台以VoIP技术为基础,以主席控制模式的视频会议为主要功能,并且与数据通信、程序共享、电子白板等辅助功能相融合,最终初步构建了一个软件视频通信平台。
This paper has a thorough ananlysis and research to the new VoIP protocol-IAX. IAX protocol is expanded partly according to its basic principle and proceeding. A new function multiple video communications is added into this protocol. Source code of IAX protocol is programmed, optimized and encapsulated to supply API (application programming interface) for further project development and the multiple video communications module is carried out.
Key technologies of VoIP system are studied in this paper. A new concept of Personal View Video Conference is put forward to resolve the problem of too much bandwidth used in the video conference system. VAD (voice activity detection) technology is used to carry out the synchronized transfer of voice data and video data. At last, a successful Personal View Video Conference system is constructed in the lab and much useful testing data are obtained.
A system of Video Communication Platform in high speed LAN is brought out on the base of VoIP system. A thorough research is made on the system structure, applicating modes and function modules of video conference system. A software Video Communiaction Platform is constructed in the form of chairman controlling multi-parts video conference system supplying many assistant functions such as data communication, program sharing, white board and so on.
引文
[1]张登银、孙精科. VoIP技术分析与系统设计[M].第一版.北京:人民邮电出版社, 2003。
[2]胡凯、宋京民等.网络技术新技术[M].第一版.科学出版社. 2001年7月。
[3] Elias Levy, Lvan Arce,“Voices, I hear voices”[J], published by the IEEE computer society, 1540-7993/06 2006 IEEE, IEEE Security&Privacy.
[4] Yair Amir, Claudiu Danilow, Stuart Goose, David Hedqvist, Andreas Terzis,“An Overlay Architecture for High-Quality VoIP Stream”[J], 1520-9210, 2006 IEEE.
[5] M.Amir Mehmood, Tariq M.Jadoon, Noor M.Sheikh,“Assessment of VoIP Quality over access networks”[J], 0-7803-9179-9/05, 2005 IEEE.
[6] Simon R.Broom,“VoIP Quality Assessment: Taking account of the Edge-Device”[J], IEEE transactions on audio, speech, and language processing, VOL.14, NO.6, November, 2006.
[7] Jian-Hong Wang, J.-P.Pan, Yi-Chi Cheng,“Session recognition and Bandwith Guarantee for Encrypted Internet Voice Traffic: Case study of skype”[J], 1-4244-0705-2/07 2007 IEEE.
[8] Rahul Agrawal, Neena Gupta,“To improve the voice quality over IP using channel coding”[J], 0-7803-9210-8/05, 2005 IEEE.
[9] Miroslaw Narbutt, Andrew Kelly, Liam Murphy, Philip Perry,“Adaptive VoIP Playout Scheduling: Assessing User Satisfaction”[J], 1089-7801/05, 2005 IEEE.
[10] Patrick C.K.Hung, Miguel Vargas Martin,“Security issues in VoIP applications”[J], 1-4244-0038-4 2006, IEEE CCECE/CCGEI, Ottawa, May 2006.
[11] Roberto Barbieri, Danilo Bruschi, Emilia Rosti,“Voice over Ipsec: Analysis and Solutions”[J], Proceedings of the 18th Annual Computer Security Applications Conference, 1063-9527/02, 2002 IEEE.
[12]唐雄燕、庞韶敏.软交换网络技术与应用实践[M].电子工业出版社. 2005年1月。
[13]张智江、张云勇、刘韵洁编著. SIP协议及其应用[M].北京:电子工业出版社, 2005。
[14] BUR COODE. Voice Over Internet Protocol[J]. PROCEEDING OF THE IEEE, VOL. 90, NO.9, SEPTEMBER 2002。
[15] Handley M, Schulzrinne H.Schooler E. Session Initiation Protocol(SIP). RFC3262. IETF[C], 2002.
[16] Rosenberg J. Session Initiation Protocol (SIP)-Specific Event Notification.RFC3265. IETF[C], 2002.
[17] M.spencer B.Capouch, Inter-Asterisk eXchange Version 2. IETF DRAFT[C]. November 2005.
[18] Glasmann J, Kellerer W, Muller H. Service Development and Deployment in H.323 and SIP[J]. Computers and Communications, 2001 Proceedings Sixth IEEE Symposium on 3-5 July, 2001 Page(s): 378-385.
[19] Taemoor Abbasi, Shekhar Prasad, Nabil Seddigh, Ioannis Lambadaris. A COMPARATIVE STUDY OF THE SIP AND IAX PROTOCOLS[J]. 2005 IEEE CCECE/CCGEI, Saskatoon, May 2005, 179-183.
[20]朱利、周俊辉、郑守淇,面向对象的分布式视频会议系统模型[J]。西安交通大学学报。第34卷第8期, 2000年8月。
[21] GIPSound about http://www.globalipsound.com。
[22] Asterisk About http://www.asterisk.org/。
[23]张会汀,薛沛林,郑力明,肖志明,黄伟英,基于IP网的分布式视频会议系统[J],计算机工程,2002年6月,第28卷,第6期;Computer Engineering,June 2002,Vol28 No6。
[24]扶庆华、邓正宏、郑炜.广域网中分布式视频会议系统的设计与实现[J].计算机工程.2004年9月,第30卷,第17期,157-159. Tokyo: IEEE FU Qinghua, DENG Zhenghong, ZHENG Wei. Design and Realization of Distributed Video Meeting System in WAN[J]. Computer Engineering,September 2004,Vol30,No17,157-159。
[25]张江山、鲁平编著,视频会议系统及其应用[M],第一版,北京邮电大学出版社, 2002年1月。
[26] http://www.asterisk.org/source/iax.
[2]胡凯、宋京民等.网络技术新技术[M].第一版.科学出版社. 2001年7月。
[3] Elias Levy, Lvan Arce,“Voices, I hear voices”[J], published by the IEEE computer society, 1540-7993/06 2006 IEEE, IEEE Security&Privacy.
[4] Yair Amir, Claudiu Danilow, Stuart Goose, David Hedqvist, Andreas Terzis,“An Overlay Architecture for High-Quality VoIP Stream”[J], 1520-9210, 2006 IEEE.
[5] M.Amir Mehmood, Tariq M.Jadoon, Noor M.Sheikh,“Assessment of VoIP Quality over access networks”[J], 0-7803-9179-9/05, 2005 IEEE.
[6] Simon R.Broom,“VoIP Quality Assessment: Taking account of the Edge-Device”[J], IEEE transactions on audio, speech, and language processing, VOL.14, NO.6, November, 2006.
[7] Jian-Hong Wang, J.-P.Pan, Yi-Chi Cheng,“Session recognition and Bandwith Guarantee for Encrypted Internet Voice Traffic: Case study of skype”[J], 1-4244-0705-2/07 2007 IEEE.
[8] Rahul Agrawal, Neena Gupta,“To improve the voice quality over IP using channel coding”[J], 0-7803-9210-8/05, 2005 IEEE.
[9] Miroslaw Narbutt, Andrew Kelly, Liam Murphy, Philip Perry,“Adaptive VoIP Playout Scheduling: Assessing User Satisfaction”[J], 1089-7801/05, 2005 IEEE.
[10] Patrick C.K.Hung, Miguel Vargas Martin,“Security issues in VoIP applications”[J], 1-4244-0038-4 2006, IEEE CCECE/CCGEI, Ottawa, May 2006.
[11] Roberto Barbieri, Danilo Bruschi, Emilia Rosti,“Voice over Ipsec: Analysis and Solutions”[J], Proceedings of the 18th Annual Computer Security Applications Conference, 1063-9527/02, 2002 IEEE.
[12]唐雄燕、庞韶敏.软交换网络技术与应用实践[M].电子工业出版社. 2005年1月。
[13]张智江、张云勇、刘韵洁编著. SIP协议及其应用[M].北京:电子工业出版社, 2005。
[14] BUR COODE. Voice Over Internet Protocol[J]. PROCEEDING OF THE IEEE, VOL. 90, NO.9, SEPTEMBER 2002。
[15] Handley M, Schulzrinne H.Schooler E. Session Initiation Protocol(SIP). RFC3262. IETF[C], 2002.
[16] Rosenberg J. Session Initiation Protocol (SIP)-Specific Event Notification.RFC3265. IETF[C], 2002.
[17] M.spencer B.Capouch, Inter-Asterisk eXchange Version 2. IETF DRAFT[C]. November 2005.
[18] Glasmann J, Kellerer W, Muller H. Service Development and Deployment in H.323 and SIP[J]. Computers and Communications, 2001 Proceedings Sixth IEEE Symposium on 3-5 July, 2001 Page(s): 378-385.
[19] Taemoor Abbasi, Shekhar Prasad, Nabil Seddigh, Ioannis Lambadaris. A COMPARATIVE STUDY OF THE SIP AND IAX PROTOCOLS[J]. 2005 IEEE CCECE/CCGEI, Saskatoon, May 2005, 179-183.
[20]朱利、周俊辉、郑守淇,面向对象的分布式视频会议系统模型[J]。西安交通大学学报。第34卷第8期, 2000年8月。
[21] GIPSound about http://www.globalipsound.com。
[22] Asterisk About http://www.asterisk.org/。
[23]张会汀,薛沛林,郑力明,肖志明,黄伟英,基于IP网的分布式视频会议系统[J],计算机工程,2002年6月,第28卷,第6期;Computer Engineering,June 2002,Vol28 No6。
[24]扶庆华、邓正宏、郑炜.广域网中分布式视频会议系统的设计与实现[J].计算机工程.2004年9月,第30卷,第17期,157-159. Tokyo: IEEE FU Qinghua, DENG Zhenghong, ZHENG Wei. Design and Realization of Distributed Video Meeting System in WAN[J]. Computer Engineering,September 2004,Vol30,No17,157-159。
[25]张江山、鲁平编著,视频会议系统及其应用[M],第一版,北京邮电大学出版社, 2002年1月。
[26] http://www.asterisk.org/source/iax.