EX-03 CHAPTER 3- Exercises Solutions 1. Baseband transmission means sending a digital or an analog signal without modulation using a low-pass channel. Broadband transmission means modulating a digital or an analog signal using a band-pass channel. 2. Optical signals have very high frequencies. A high frequency means a short wavelength because the wavelength is inversely proportional to the frequency ( = c/f)‚ where c is the propagation speed in the media. 3. The frequency domain of a voice signal
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across India except New Delhi & Mumbai. Whether it is inaccessible areas of Siachen glacier or North-Eastern regions of the country‚ BSNL serves its customers with a wide bouquet of telecom services namely Wireline‚ CDMA mobile‚ GSM mobile‚ Internet‚ Broadband‚ Carrier service‚ MPLS-VPN‚ VSAT‚ VoIP‚ IN Services‚ FTTH‚ etc. BSNL is numero uno of India in all services in its license area. The company offers wide ranging & most transparent tariff schemes designed to suit every customer. BSNL has 90.09 million
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Table of contents What is Bandwidth? 1) In computer networks‚ bandwidth is often used as a synonym for data transfer rate - the amount of data that can be carried from one point to another in a given time period (usually a second). This kind of bandwidth is usually expressed in bits (of data) per second (bps). Occasionally‚ it’s expressed as bytes per second (Bps). A modem that works at 57‚600 bps has twice the bandwidth of a modem that works at 28‚800 bps. In general‚ a link with a high bandwidth
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Module 2 Data Communication Fundamentals Version 2 CSE IIT‚ Kharagpur Lesson 1 Data and Signal Version 2 CSE IIT‚ Kharagpur Specific Instructional Objectives At the end of this lesson the students will be able to: • • • • • • • • • Explain what is data Distinguish between Analog and Digital signal Explain the difference between time and Frequency domain representation of signal Specify the bandwidth of a signal Specify the Sources of impairment Explain Attenuation and Unit of Attenuation
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consisting of a round conducting wire‚ surrounded by an insulating spacer‚ surrounded by a cylindrical conducting sheath‚ usually surrounded by a final insulating layer. It is used as a high-frequency transmission line to carry a high-frequency or broadband signal. Sometimes DC power (called bias) is added to the signal to supply the equipment at the other end‚ as in direct broadcast satellite receivers. Because the electromagnetic field carrying the signal exists (ideally) only in the space between
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Carrier cloud Motive Customer Experience 3 lightRadio™ 400G photonic XRS Core router COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. GLOBAL SEGMENT SHARE HIGHLIGHTS #1 BROADBAND ACCESS DSL (1) CDMA (1) OPTICAL 100G (2) SLTE (3) #2 BROADBAND ACCESS GPON (1) BROADBAND ACCESS PON (1) LTE (1) (2) #3 TOTAL SWTICHING & ROUTING (2) OPTICAL 40G (2) PACKET MICROWAVE (3) (4) UNIFIED COMMUNICATIONS (2) IP/MPLS SERVICE EDGE ROUTERS TOTAL PACKET TRANSPORT (2)
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1. Describe the difference between an analog signal and a digital signal? Analog signal has a smooth consistency over a vary of time. An example of analog signal is voice. Digital signal is smooth‚ but after a period of time‚ it will change its consistency. An example of digital signal is text. 2. What is the function of a dial up modem? A dial up modem‚ modulates the digital data received from a computer‚ and transfers it into an analog signal‚ which then transmits down a telephone line. The
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Orange signs Nokia Siemens Networks to extend network and rollout 4G (LTE) #MWC13 Nokia Siemens Networks to provide and implement complete radio and core network Customers of Orange Communications in Switzerland can expect to enjoy superior mobile broadband with faster data speeds and improved coverage. Under a five-year agreement‚ Orange has selected Nokia Siemens Networks to extend its radio access network as well as supply and build its network to deliver 4G (LTE - long term evolution) services.
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rac “CHANNEL TRACKING IN WIRELESS OFDM SYSTEMS” A Project report submitted in partial fulfillment of requirements for the award of degree of BACHELOR OF TECHNOLOGY in ELECTRONICS AND COMMUNICATION ENGINEERING Submitted by B.M.SAI SATHEESH (097Y1A0404) Under the esteemed guidance of Mr. P.Anil Kumar DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING A1 GLOBAL INSTITUTE OF ENGINEERING AND TECHNOLOGY Approved by A.I.C.T.E Affiliated to J.N.T.U Kakinada Markapur-523316
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Study of OFDM System and Implementation of FFT Algorithm in VHDL Ammu Krishnan1 ‚ Aswathy Sivanandan1 ‚ Indurekha P R1 ‚ Mekha V1 ‚ Shilpa K A 1 1 S7‚ B.Tech‚ Department of Electronics and Communication Engineering‚ National Institute of Technology‚ Calicut Project guide: Lyla B Das‚ Associate Professor‚ Department of Electronics and Communication Engineering‚ National Institute of Technology Calicut Abstract—Increasing the performance is the best criterion for developing any communication
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