EE4512 Analog and Digital Communications Chapter 7 Multiplexing Techniques Chapter 7 EE4512 Analog and Digital Communications Chapter 7 Multiplexing Techniques • Time Division Multiplexing • Pages 364-368 Chapter 7 EE4512 Analog and Digital Communications Chapter 7 • Time division multiplexing (TDM) combines several low‚ fixed and predefined bit rate sources into a single high speed bit stream for transmission over a single digital communication channel: Time slots
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LITERATURE REVIEW ON ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING Amanpreet Kaura‚ Kamaljit Singh Bhatiab a‚b Department of Electronics Engineering‚ Sri Guru Granth Sahib World University‚ Fatehgarh Sahib‚ India Corresponding Author:kamalbhatia.er@gmail.com To design optical OFDM using low bandwidth electronics and optoelectronics components‚also low loss comb-line combiner using the IFFT‚lightware centralized Bidirectional hybrid Acess network and also with remodulated ONUS and a coherent
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1005132 4. Lim Lexian 1201309 5. Ng Joe Yee 1002691 6. Teo Pei Ping 1105290 Implant of RFID tags in human body has more pros than cons 1.0 Introduction RFID is the wireless non-contact use of radio-frequency electromagnetic fields to transfer data. The purposes of automatically identifying and tracking tags attached to objects. Since RFID tags can be attached to clothing‚ possessions‚ or even implanted within people the possibility of reading personally-linked
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THE BIRTH‚ DEVELOPMENT AND EVOLUTION OF BIT-COINS AND RFID TECHNOLOGIES INTRODUCTION RFID (Radio Frequency Identification) and BIT-COINS technologies are regarded as the most prestigious payment system technologies of today due to their various responsibilities of tracking and making legitimate payments. The main focus of this article is to make the thorough investigation on the birth‚ development and evolution of BIT-COINS and RFID technologies regarding the following issues which might arise when
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technologies can have immediate and commercially viable applications that improve the quality of current goods or reduce their cost. Others go in a completely different direction (Emerging‚ March 2011). Some of the technologies on the forefront are radio frequency identification (RFID)‚ enterprise resource planning (ERP)‚ and other information technology. RFID RFID is not a new technology. The first patent for an active RFID tag with rewritable memory was on January 23‚ 1973. Later that year a California
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Table of Contents Chapter 1: Introduction 5 1.1. Background Information 5 1.2 Problem Statement 5 1.3 Project Aim and Objectives 5 1.3.1 Aim 5 1.3.2 Objectives 5 1.4 Project Scope and Constraints 6 1.4.1 Scope 6 1.4.2 Constraints 6 1.5 Feasibility study 6 1.5.1 Operational 6 1.5.2 Technical 6 1.5.3 Social 6 1.5.4 Legal 7 1.5.5 Economical 7 1.6 Justification or Significance of the research 7 1.7 Literature review 7 Chapter 1: Introduction 1.1. Background
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how radio frequency ID will save company money in future “Radio-frequency identification (RFID) is the wireless non-contact use of radio-frequency electromagnetic fields to transfer data‚ for the purposes of automatically identifying and tracking tags attached to objects.”1 As a result‚ it is an extremely powerful way in examining the situation or the existence of certain objects because the RFID signals emitted by the tags could be caught easily with monitoring or detecting devices. Without doubt
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University)‚ Kurukshetra 136119‚ India Received 18 September 2007; accepted 14 April 2008 Abstract Orthogonal frequency division multiplexing (OFDM) is a very important modulation technique in wideband wireless communication and multimedia communication systems. While‚ it can effectively deal with multipath delay spread produced by frequency fading channels‚ its main drawback is the effect of frequency offset (FO) produced by the receiver local oscillator or by motion-induced Doppler. The FO breaks the orthogonality
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This can be achieved by either giving users a time slice of the channel or some of the frequency space. The use of multiplexing has been the backbone of telephone systems around the world. Click on this link to review the wikipedia resource on multiplexing. Next: Types of Multiplexing Types of Multiplexing There are two basic forms of multiplexing used: * Time division multiplexing (TDM) * Frequency division multiplexing (FDM) Next: Time Division Multiplexing Time Division Multiplexing
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Extensive Coverage The most obvious advantage of GSM is its widespread use throughout the world. According to Gsmworld.com‚ GSM has a harmonized spectrum‚ which means that even though different countries may operate on different frequency bands‚ users can transfer seamlessly between networks and keep the same number. As a result‚ GSM users essentially have coverage in over 218 countries. Greater Phone Variety Another advantage of GSM is that because it is used throughout the world‚ there is
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