PPT-Modulation and OFDM Communication

Exchange of information from point A to point B 100001101010001011101 100001101010001011101 Transmit Receive Wireless Communication Exchange of information from point A to point B 100001101010001011101. There are different “flavors” of OFDM according what we put in the Prefix:. data. P. data. P. data. P. time. Prefix. Three main choices:. . CP-OFDM with Cyclic Prefix (CP). . ZP-OFDM with Zero Prefix (ZP). Husheng Li. The University of Tennessee. Chopper Sampling . We introduce a switching function such that . x_s. (t)=x(t)s(t), where. Nyquist. Criterion. The sampling rate should be at least twice the bandwidth of the signal, in order to fully reconstruct the signal.. nalhareqi-2013. 1. Standard Amplitude Modulation (AM). nalhareqi-2013. 2. In the DSP-SC demodulation, a receiver must generate a local carrier in frequency and phase synchronism with the carrier used for modulation.. Jungmin. Park. Project b. ackground. OFDM used widely for high-speed digital communication. High performance of FFT processor for real time application. Dedicated . FFT processor for only . 1. st. . semster. 1436-1437. King Saud University . College of Applied studies and Community . Service. 1302CT. DSB-SC. Double Side Band Suppress Carrier (DSB-SC) is one type of Amplitude Modulation. Prof. . Brian L. . Evans. , . Wireless Networking and Communications Group. , . The . University of Texas at Austin. Stude. nts: . Mr. Karl . Nieman. , Mr. Marcel . Nassar. and Ms. Jing Lin. Approximate Message Passing (AMP). Analog data to analog signal. (AM, FM, PM). Digital data to analog signal. (ASK, FSK, BPSK, QAM). Analog data to digital signal. (PCM, DM). Digital data to digital signal. (line codes). Signal Encoding Techniques (modulation and encoding). Tenenbaum, . Wetherall. (uploaded on Canvas). Communication. Exchange of information from point A to point B. 100001101010001011101. 100001101010001011101. Transmit. Receive. Wireless Communication. WiFi. Feng. Lu. , Patrick Ling, Geoffrey M. . Voelker. , and Alex C. . Snoeren. UC San Diego . Researchers report active . WiFi. radio can consume up to 70% of a smartphone’s energy . [. Rozner. . Code division multiple access Steps in CDMA Modulation. CDMA is a spread spectrum multiple access technique. https://store.theartofservice.com/the-modulation-toolkit.html. Code division multiple access Steps in CDMA Modulation. Repeatedly and Continually. Objectives:. Students will be able to use the adjective modulation of VERY and repeated and continuous forms of verbs and match them with their corresponding time signs.. Students will be able to sign the vocabulary correctly using MOPSE and be able to interpret the vocabulary when signed in lists and in sentences. . Lecture . 1-7. University of . Mustansiriyah. College of Engineering. Department of Computer Engineering . Example: ASK, FSK, PSK, QAM. Binary digital modulation. Multilevel digital modulation. Amplitude Shift Keying. Binary-ASK --- BASK. Or On-Off Keying OOK. Uses two amplitude levels for the modulated carrier . 1. http://www.gaussianwaves.com/2012/05/performance-comparison-of-digital-modulation-techniques/. Note: M=2^m.