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Li Xiujuan,Wang Zuqiang,Liu Xianwei
Strategic Study of CAE 2006, Volume 8, Issue 12, Pages 89-91
According to the top-down design method, a MCU IP core has been designed.
Capacity of VoIP in IEEE 802.11 Wireless LAN
Chen Liquan,Hu Aiqun,Zhou Xueli
Strategic Study of CAE 2005, Volume 7, Issue 7, Pages 81-85
Voice transmitted over wireless LAN faces serious challenge because of the fluctuation of the wireless channel. In this paper, the transmission of voice over wireless LAN is firstly analyzed. Taking collision probability into account, the stochastic analysis based on a Markov chain to calculate the upper bound number of simultaneous VoIP calls that can be supported in a single cell of an IEEE 802. llb/a/g network is proposed. The upper bound capacities of G. 711, G. 729 and G. 723.1 code transmitted over 802. llb/a/g are figured out. The simulation results from NS2 simulator have validated the analysis values.
Keywords： wireless LAN voice over IP capacity Markov chain
New 3G System——Mobile Wireless Internet
Hou Ziqiang
Strategic Study of CAE 2002, Volume 4, Issue 7, Pages 86-92
Keywords： 3G mobile phone mobile internet broadband mobile wireless internet WLAN TD — LAS mobile IP Ipv6 IP core
Dynamical Fast IP-Routing Lookup Algorithm
Liu Yalin
Strategic Study of CAE 2002, Volume 4, Issue 7, Pages 60-68
This paper proposes a dynamical fast IP-routing lookup algorithm (DFR).
Keywords： prefix expansion dynamical fast IP-routing lookup algorithm (DFR) route route lookup
Research and Realization of IP Multicast Routing Protocol
Li Wei
Strategic Study of CAE 2002, Volume 4, Issue 1, Pages 82-88
This paper first explains why IP multicasting must be used.Then it summaries the fundamentals of IP multicasting and multicast routing protocols.Finally it discusses the problems and prospect of IP multicasting.
Keywords： protocol independent multicast-sparse mode (PIM-SM) multiple rendezvous point (RPs) multicast
Wu Hequan
Strategic Study of CAE 2000, Volume 2, Issue 8, Pages 69-75
The article firstly reviews the evolution of the 1st generation (analogy) mobile communication system and the 2nd generation (digital) mobile communication system, and predicts that deployment of mobile communication systems will be enter a development period at a more great rate in the next decate. The mobile communication service will extend from voice to data, and the mobile communication technology will transits from circuit mode to packet mode. Following briefly addressing the second and half generation mobile communication system (2.5 GM) that will come to application soon, introduces the 3rd generation mobile communication (3 GM) for broadband multimedia application. Some schemes as mainstream of 3GM RTT (radio transmission technology) standards and the key technologies, especially technical features of TD - SCDMA presented by China, are emphatically described. Finally, The transition strategy from 2GM to 3GM and the development trend of 3GM core network are prospected in this article.
Keywords： mobile communication third generation mobile communication CDMA TD - SCDMA
Research and Implementation of IP - VPN
Li Xiuzhong
Strategic Study of CAE 2002, Volume 4, Issue 3, Pages 84-91
Recently, IP - VPN is proposed as a way satisfying large company´s inter-connect requirementFor IP - VPN, now there are several mechanisms： VLL, VPRN, VPLS and VPDN.
Keywords： virtual private routed network (VPRN) virtual private LAN segment (VPLS) border gateway protocol / multi-protocol label switch (GP/MPLS) virtual router (VR) worst-case weighted fair queue (WF2Q) random early detection (RED)
Liu Qiang,Wang Wentao,Li Li,Li Huilian,Wang Jun,Jie Ganxin and Zhang Xiaodong
Strategic Study of CAE 2014, Volume 16, Issue 1, Pages 99-102
Keywords： automobile IP materials bumper materials light- aging resistance color difference gloss
Title Author Date Type Operation
Third Generation Mobile Communication——The IP Oriented Application of Modern Wireless Communication Technology
Wu Hequan
Journal Article
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