http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Syed Aminullah (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Towards a Distributed Wireless VoIP Infrastructure
Yuebin Bai,Syed Aminullah,Chao Li 보안공학연구지원센터 2007 International Journal of Multimedia and Ubiquitous Vol.2 No.2
It is the requirement of the next generation communication systems that devices should provide all existing and future communication services in integral way. A novel distributed wireless VoIP infrastructure based on SIP protocol, WiFi, and smart devices is proposed in this paper. The proposed architecture of the infrastructure is simple, manageable, stable, and extendable. The prototype test bed is an Infrastructure of distributed wireless VoIP Server based SIP, which provides text, voice and video communication to both wired and wireless devices. One of the main characteristic of this model is roaming and mobility. User authentication is centralized, and SIP server uses remote centralized AAA server for user authentication . Thus mobile users don’t need to worry about roaming and changing the Server. The whole architecture is modular, and the reason for isolating the core modules from the extended modules is flexibility and extendibility. At the end of the paper, detailed test approaches ,test results and result analysis of the prototype system are presented. Test results show that the prototype system reach the design goal of this research work..
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
