CORDECT WIRELESS ACCESS SYSTEM PDF

It is the only cost-effective Wireless Local Loop WLL system in the world today that provides simultaneous toll-quality voice and 35 or 70 kbps Internet access to wireless subscribers. This alliance has resulted in many breakthrough concepts including that of an Access Network that segregates voice and Internet traffic and delivers each, in the most efficient manner, to the telephone network and the Internet respectively, without the one choking the other. In this conceptual model, there is a Subscriber Unit SU located at the subscriber premises. The SU has a standard two-wire interface to connect a telephone, cordless phone, or modem. The access system allows simultaneous telephone and Internet connectivity. The SU's are connected to an Access Centre AC using any convenient technology like wireless, plain old copper, coaxial cable, optical fibre, or even power lines.

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It is the only cost-effective Wireless Local Loop WLL system in the world today that provides simultaneous toll-quality voice and 35 or 70 kbps Internet access to wireless subscribers. This alliance has resulted in many breakthrough concepts including that of an Access Network that segregates voice and Internet traffic and delivers each, in the most efficient manner, to the telephone network and the Internet respectively, without the one choking the other.

In this conceptual model, there is a Subscriber Unit SU located at the subscriber premises. The SU has a standard two-wire interface to connect a telephone, cordless phone, or modem. The access system allows simultaneous telephone and Internet connectivity. The SU's are connected to an Access Centre AC using any convenient technology like wireless, plain old copper, coaxial cable, optical fibre, or even power lines.

The AC must be scalable, serving as few as subscribers and as many as subscribers. In urban areas, the AC could be located at a street corner, serving a radius of m to 1 km. This small radius in urban areas is important for wireless access, in order to enable efficient reuse of spectrum.

When cable is used, the small radius ensures low cost and higher bitrate connectivity. However in rural areas, the distance between the AC and the SU could easily be 10 km even go up to 25 km in certain situations. The AC is thus a shared system catering to multiple subscribers. The voice and Internet traffic to and from subscribers can be concentrated here and then carried on any appropriate backhaul transport network to the telephone and Internet networks respectively.

At the AC, the telephone and Internet traffic is separated. The telephone traffic carried to the telephone network on E1 links using access protocols such as V5. As use of Voice-over-IP VoIP grows, voice traffic from subscriber traffic could also be sent to the Internet, gradually making the connectivity to the telephone network redundant. However, for connecting to the legacy telephone network, the voice port of the AC may be required for some time to come.

An AC could also incorporate switching and maintenance functions when required. Are you interested in this topic. Then mail to us immediately to get the full report.

FRIEDRICH GLASL KONFLIKTMANAGEMENT PDF

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This paper describes a new wireless local loop system for rapid expansion of telecom services. It is developed under a joint project involving Indian and US participants. The new system, called corDECT, is based on a microcellular architecture and uses a modest bandwidth of 20MHz to provide voice, fax, and data communication in low as well as very high subscriber density environments. This paper also discusses the relevance of corDECT in the context of current trends towards wireless systems, contrasts the microcellular architecture of corDECT with existing wireless systems based on macro cellular architectures, and outlines its market potential. This cost-effective technology can be a great boon to the millions of Indians who have no access to such facilities today.

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