PDF-Pulse Position Modulation for FSO Systems Capacity and Channel Coding F

Xu MA Khalighi S Bourennane Ecole Centrale Marseille Institut Fresnel UMR CNRS 6133 Marseille France FangXufresnelfr AliKhalighifresnelfr SalahBourennanefresnelfr Abstract For terrestrial free space optical FSO sys tems we investigate the use of pu. 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.. Section 6.6. DSB/SC-AM . Modulation (Review). Frequency Shift . Property (Review). Frequency Spectrum of DSB/SC-AM . Signal (Review). Carrier Signal for Amplitude Modulation. Pulse Amplitude Modulation. Panels in the Sky:. A Case for Free-Space Optics . in Data Centers. Navid . Hamed. . Azimi. ,. . Himanshu. Gupta. Vyas Sekar, Samir Das. Datacenter network design is hard!. Cost. Performance. Cabling. 12 - . 2. Outline. Analog communication systems. Channel impairments. Hybrid communication systems. Analog pulse amplitude modulation. 12 - . 3. Communication System Structure. Information sources. Voice, music, images, video, and data (baseband signals). Husheng Li. The University of Tennessee. Course Contents. Basics of communications. Signals and noise. Amplitude modulation. Phase and frequency modulations. Pulse modulation. Analog communication system. Wireless Communications. : . Lecture 2. Professor Andrea Goldsmith. UCSD. March 22-23. La Jolla, ca. Course Outline. Overview of Wireless Communications. Path Loss, Shadowing, and WB/NB Fading. Capacity of Wireless Channels. Stanford University. Joint work with . Andrea Goldsmith . and . Yonina. . Eldar. Shannon . meets . . Nyquist. . :. Capacity Limits of Analog Sampled Channels. Capacity of Analog Channels. Point-to-Point Communication. 12 - . 2. Communication System Structure. Information sources. Voice, music, images, video, and data (baseband signals). Transmitter. Signal processing block lowpass filters message signal. Carrier circuits block upconverts baseband signal and bandpass filters to enforce transmission band. 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). Dr. Mohamed Bingabr. Chapter 1. Introduction. ENGR 4323/5323. Digital and Analog Communication. Why Communication. Communication advances society’s development.. Before. . modern time . verbal messages were carried by runners, carrier . Amplitude Modulation (AM). Time domain equation. y. AM. (t. ) = . Information or message x carrier. . = . m(t) . x A cos(w. c. t. ). . Frequency domain equation. Double . sideband . Analogue to Digital Conversion. Quantizing. Encoding. Pulse Code Modulation. DEFINITION: . Pulse code modulation (PCM) is essentially analog-to-digital conversion of a special type where the . information . 2. Outline. Analog communication systems. Channel impairments. Hybrid communication systems. Analog pulse amplitude modulation. 12 - . 3. Communication System Structure. Information sources. Voice, music, images, video, and data (baseband signals). Bryan, G8DKK. Outline. AM and FM Waveforms. FM Transmission. Modulation Frequency. Deviation. Mic Gain . Control. Limiter/Limiting amplifier. Occupied Bandwidth. FM Receivers. Receiver bandwidth (Filters).