PPT-Orthogonal Frequency Division Multiplexing

Basics Frequency of Signals Sinusoidal signals have a distinct unique frequency An arbitrary signal does not have a unique frequency but can be decomposed into many sinusoidal signals with different frequencies each with different magnitude and phase . Data . Transmission . Data Transmission. What we've got here is failure to communicate. . . Paul Newman in . Cool Hand Luke. Data Transmission. The successful transmission of data depends on two factors:. optical telecommunication networks. Outline. Introduction. Multiplexing . Optical Multiplexing. Components of Optical Mux. Application. Advantages. Shortcomings/Future Work. Conclusion. References. Introduction. Multiplexing refer to the combination of information streams from multiple sources for transmission over a shared medium. Multiplexor is a mechanism that implements the concept. . Demultiplexing. refer to the separation of a combination back into separate information streams. Husheng Li. The University of Tennessee. Superheterodyne. Receiver. Four tasks of the receiver:. Demodulation. Carrier frequency tuning. Filtering. Amplification of signal. In theory, all of the foregoing requirements could be met with a high-gain tunable . optical telecommunication networks. Outline. Introduction. Multiplexing . Optical Multiplexing. Components of Optical Mux. Application. Advantages. Shortcomings/Future Work. Conclusion. References. Introduction. Lecture 3:. Introduction to . Cellular Mobile Networks. Dr. . Shahriar. . Bijani. Shahed University. Spring 2016. Main References. A. S. . Tanenbaum. and D. J. . Wetherall. , . Computer Networks. (5th Edition), Pearson Education, the book slides, 2011.. The trend of time-frequency analysis in recent years:. (1) S transform and its generalization . (2) Time-variant signal expansion. (3) Improvement for the Hilbert-Huang transform . 186. VII-A . . S Transform . Division . Multiplexing ). Basics of . ofdm. Orthogonal Frequency Division Multiplexing.  (OFDM) is a method that allows to transmit high data rates over extremely hostile channels at a comparable low complexity.  . Charleston, South Carolina. Rationale. Efficiency. Basic Components. Key Innovations. Multiplexing. Trends. Outline. 2. Rationale- Basis of Competition. 3. From Christensen . Innovators Dilemma. Performance.. Introduction. Under the simplest conditions, a medium can carry only one signal at any moment in time. For multiple signals to share one medium, the medium must somehow be divided, giving each signal a portion of the total bandwidth.. . Digital Modulation and Multiplexing. NRZ and NRZI and Balanced Signals. NRZ has a positive voltage represented by 1 and a negative voltage represent by 0.. NRZI has a transition represented by 1 and a 0 represents no transition.. Presentation Title: . FDM and . its Applications. Team Members:. Students Name . Reg.No. :. 1.. . ABILASH N . 210618106001. . 1. Multiplexing. Multiplexing. process . allows several transmission sources to share a larger transmission capacity. .. multiple . links on 1 physical line. Most common use of multiplexing is in long-haul communication using coaxial cable, microwave and optical . 2. Time-division multiplexing. 1 channel . จะเป็น . analog . หรือ . digital . ก็ได้. Analog-Analog modulation. ความถี่ . 64k HZ, Amplitude . ไม่เกิน .