Cable Television Laboratories Inc., and its associates have prepared a series of interface specifications known Data over Cable System (DOCSIS) that permit the early definition, design, development and deployment of data-over-cable systems on a uniform, consistent, open, non-proprietary, multi-vendor interoperable basis. This would also back up the cable operators are interested in deploying high-speed data communications systems on cable television systems.

This service allows transparent bi-directional transfer of Internet Protocol (IP) tr ....etc

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TRANSMISSION MEDIA , ANALOG VS DIGITAL DATA TRANSMISSION



INTRODUCTION
The transmission medium is the physical path between the transmitter and receiver in a data transmission system.
Transmission media is divided into two types: Guided(wired) or Unguided(Wireless).
Wired Media is the most common and is further divided into three different types of cabling: Coaxial, Twisted Pair, and Fiber Optic Cables
Wireless media, which is, in a sense, no media ....etc

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ABSTRACT
The vision of nomadic computing with its ubiquitous access hasstimulated much interest in the Mobile Ad Hoc Networking(MANET) technology. However, its proliferation strongly dependson the availability of security provisions, among other factors. In theopen, collaborative MANET environment practically any node canmaliciously or selfishly disrupt and deny communication of othernodes. In this paper, we present and evaluate the Secure MessageTransmission (SMT) protocol, which safeguards the datatransmission against arbitrary malic ....etc

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A large interest in renewable energy systems has been developed to mitigate the green house effect. In Western Europe, the focus is thus, on wind power and especially on offshore locations, due to higher energy production, a longer expected life time and lack of suitable wind turbine sites on land. A DC cable is the preferred choice when connecting large offshore wind farms to the grid. The utilization of the Dc cables was enabled by the new HVDC transmission technology using voltage sourced converters. The offshore windfarms that are being bui ....etc

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INSTITUTE OF TECHNOLOGY AND MARINE ENGINEERING
KOLKATA, INDIA

RUPAYAN AICH

COMP. SC. & ENGG.


Using Telephone and Cable Networks for Data Transmission

TELEPHONE NETWORK
Telephone networks use circuit switching. The telephone network had its beginnings in the late 1800s. The entire network, which is referred to as the plain old telephone system (POTS), was originally an analog system using analog signals to transmit voice.
Topics discussed in this section:
Major Components
LATAs
Signali ....etc

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Data over Cable System (DOCSIS)

Cable Television Laboratories Inc., and its associates have prepared a series of interface specifications known Data over Cable System (DOCSIS) that permit the early definition, design, development and deployment of data-over-cable systems on a uniform, consistent, open, non-proprietary, multi-vendor interoperable basis. This would also back up the cable operators are interested in deploying high-speed data communications systems on cable television systems.

This ....etc

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plese give me more information about digital transmission system using psk for the transmission and reception of text messages ....etc

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The High frequency attenuation in shielded distribution cable has been extensively studied. But in the case of solid dielectric cable, this has not been done. A solid dielectric cable has a bit more complex structure including the semiconducting “bedding” layers and a moisture barrier.high frequency loss is created by these sources.The purpose of these bedding layers is to seal the cable against moisture ingress and also accomodate for the thermal expansion of the cable. The cables studied here are the ones with a corrugated copper sheat ....etc

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A large interest in renewable energy systems has been developed to mitigate the green house effect. In Western Europe, the focus is thus, on wind power and especially on offshore locations, due to higher energy production, a longer expected life time and lack of suitable wind turbine sites on land. A DC cable is the preferred choice when connecting large offshore wind farms to the grid. The utilization of the Dc cables was enabled by the new HVDC transmission technology using voltage sourced converters. The offshore windfarms that are being bui ....etc

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sir ,
i am sachin surwase . student of biomedical engg. from yavatmal .
i want information about the topic mantationed in subject .
thanking you . ....etc

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